Autograph Authentication & Signature Verification Services For Your Sports Memorabilia


JSA Letter of Authenticity (LOA) – the Gold Standard

Maximize the value and interest of your signed collectible with our James Spence Authentication Letter of Authenticity (LOA). Highly sought after by collectors, dealers and hobbyists alike, our LOA is given to any item that passes our stringent authentication process. It is accepted by all major auction houses in the country and is viewed as the Gold Standard of verification when displaying your prized collectible or offering it for sale.


The JSA Letter of Authenticity (LOA) features an inset image of the item and has been signed by autograph expert James Spence in the presence of a licensed notary public. The LOA also contains additional data such as quantity of signatures, manufacturer, type and/or model of the item. A certification label is placed on the item or letter (customer preference) with the corresponding number appearing on the LOA.


There are other possible results your memorabilia may get after JSA’s authenticators examine it:


  • Letter of Opinion (LOO) --This is a rejection letter indicating that the autograph has not met the requirements as defined by our experts. The LOO states that it is the experts’ consensus opinion that the autograph is of questionable authenticity. The LOO also provides specific details and reasons why our experts reached this conclusion, such as inconsistencies or irregularities evident in the signature.


  • Clubhouse Letter (CH) –There are occasions when autographed memorabilia is actually signed by someone else. These signers are referred to as “ghost signers” and can mean anyone such as batboys, secretaries, clubhouse personel and attendants, or in some cases other family members. A special letter will be written to identify the difference between these non-malicious (ghost-signed) examples and the actual autographs. This is similar to “secretarials” which are often associated with memorabilia from the entertainment or political arenas.


Inconclusive Letter (INC) – In rare cases, a clear conclusion as to an autograph's authenticity is unable to be determined. Even after extensive review, it is not possible for the authenticators to reach a consensus with any level of confidence; therefore, no opinion can be rendered. If your submitted item falls into this category, a credit voucher is issued for the full amount of the fee, which can be used towards a future submission.

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Basic Cert

Certificate of Authenticity

Our basic certification / certificate of authenticity is popular among dealers and collectors. Basic certification employs

the same valued authentication process as our LOA but is used to verify autographed

items of lower value (JSA discretionary value of under $200.00).


Basic certification is not witnessed by a notary and is not accompanied with an image or full, customized description like our Letter of Authenticity. Your certificate of authenticity includes a 3" x 5" James Spence Authentication registration card with a unique certification number that corresponds to the alpha-numeric tamper evident label. Each certification number is uploaded into our exclusive database for 24-hour customer verification access. Submission fees range from $20 to $30.

You can upgrade your certificate of authenticity to a letter of authenticity for just $25 per item.


Dealers or collectors with large inventories/collections should inquire about our discounted rate and/or our house calls program by sending an email to or

JSA/BGS Autograph Encapsultation Service



In partnership with Beckett Grading Services (BGS), JSA is pleased to offer our encapsulation service to preserve and protect your authenticated autographed items with a specialty in baseball cards. Through this exclusive alliance, our customers may now submit autographed card orders directly to JSA for authentication, which will then be encapsulated by BGS, with the option to add card and autograph grades.


This combination of services provides hobbyists with the highest levels of expertise in both the grading and autograph authentication industries. BGS, based in Dallas, Texas, is the industry-leading grading company. BGS can encapsulate any flat item measuring 8.5” x 11” in size or smaller. You can read all about JSA/BGS autograph grading standards here or check our FAQs for additional information. 


Please note that autographed card/baseball orders for this encapsulation service must use the JSA/BGS submission form, may not be combined with standard BGS/BVG orders, and must be sent directly to a JSA office (New Jersey or Florida). For submission forms and rules, please click here.



The Witnessed Protection

The Witnessed Protection Program (WPP)
Promoters and dealers love our Witnessed Protection Program because of its high level of signature verification. One of our representatives sits right next to the athlete or celebrity who is signing in order to witness and validate the signature at shows, conventions and signing events. This eyewitness program removes any doubt that the items you buy and sell are authentic.






Additional Services

On-Site Authentication

On-site authentication is available at major trade shows where a JSA booth is set up just for this purpose. Once your submission is received at our booth, the turnaround time for on-site autograph authentication is a few hours. The verification time can fluctuate based on the number of submissions at the event; we recommend getting your submissions in early in order to accommodate your authentication before the show/event closes. To see where JSA will be authenticating on site near your city, please visit our Events page.


All items will be returned to you by the end of the show. If our experts were unable to render an opinion regarding an autograph’s authenticity at the show, we will recommend you to mail or bring the item to one of our office locations for a more in-depth investigation. 


For items requiring the JSA Letter of Authenticity (items valued over $200.00), we will send the LOAs out within approximately two to three weeks after all paperwork is processed accuratley. JSA certification labels and certificate of authenticity cards (basic certs) are typically issued the same day your item(s) are/is submitted.


Note that JSA will accept any autographed or raw gum cards, on behalf of Beckett, for

encapsulation and/or grading at all on-site authentications.  The JSA/BGS encapsulation service typically takes 1-2 month turnaround time.


House Call Program

This concierge-level service provides private authentication for up to a full eight-hour day

at your home, office, warehouse, memorabilia shop, or at our New Jersey or Florida facility.

This program is ideal for auction houses, dealers, private collections and estate collections.


JSA’s confidential house calls program includes:

  • A reduced basic certification / letter of authenticity fee for large inventories depending on the quantity and value mix of the merchandise.
  • Verbal appraisals on individual pieces at no charge, or formal documentation at an additional $50 fee for each signed item.
  • Items and their certification numbers registered on the James Spence Authentication website for public verification. 

Compensation for our House Calls Program

Should our authenticators need to travel to you, we require:

  • Per diem fee of $2500 (minimum) payable upon completion of session
  • Air travel coach class ticket(s) or prevailing cents/mile rate roundtrip if deemed drivable
  • Roundtrip airport taxi fares or car rental to your facility
  • Double occupancy hotel accommodations for length of stay

Personal Statement of Final Wishes

As collections grow and autographed memorabilia become part of personal estates, there is another aspect to our role as autograph authenticators—that of counselors to heirs regarding collections. JSA offers consulting services regarding the circumstances and options surrounding a collection of any size. “And When I Die,” a simple statement of intent, can be prominently placed in the forefront of your collection, instructing heirs that James Spence will counsel them on fair market value, authenticity, and measures to properly distribute the property. Since we are not in the business to buy and sell, we perform this service as a neutral third party with no conflict of interest. Simply sign the form and send a copy to the offices of James Spence Authentication, LLC to protect your best interest (and your collection) by a proven company that cares.

Appraisal Letter

Predominantly used for insurance and estate purposes, JSA will generate an appraisal letter for a single item, based on our authentication, for a fee of $50. The appraisal states the approximate market value of your item in its current condition and is generally for items worth at least $100. We also offer free verbal appraisals (non-binding).


For rates on entire collections or inventories, please contact a JSA representative at either one of our office locations for a quote at NJ: (973) 898-1300 or / FL: (954) 380-8670 or