I carefully review items using my extensive exemplar file of many thousands of verified examples and nearly 20 years of hobby experience. I give each item my best effort and thinking, and I do not issue LOAs for items unless I am highly confident the item is authentic. Most of the time I have a high degree of certainty either way, but in rare cases when I don't, I will decline on offering an opinion. 

Items sent for review are handled with the utmost care and respect, are kept in a safe, and are fully insured while in my possession. 

Email Opinion

An informal opinion via email based on a large, clear scan. This may be effective for determining forgeries, Autopens, secretarials or if an item may be authentic. Note that it may be impossible to determine through a photo if an item is a copy or a pre-printed autograph. My opinion is offered under the presumption the item is not a copy of an authentic autograph.

Email Opinions begin at $12, and there is a discount for multiple items.

To order an Email Opinion, please use the button below.

  • In the payment message box, be sure to include a link to the item in question or indicate you'd like to email an image.
  • In most cases, I will reply within hours.
  • If I cannot offer an opinion or the auction ends before I can respond, I will refund the fee.
Email Opinion

Letter of Authenticity

Click to see sample LOA

A Letter of Authenticity (LOA) requires an in-hand review of the item.

Prices for written opinions start at $20. The partial list below includes prices for items commonly submitted for review. I offer discounts for multiple items.

  • Buzz Aldrin - $40
  • Bill Anders - $30
  • Apollo 8 Crew - $75
  • Apollo 1 Crew - $125
  • Apollo 11 Crew - $125
  • Armstrong, Neil - $80
  • Gagarin, Yuri - $30
  • Grissom, Gus - $40
  • Mercury 7 - $125
  • Shepard, Alan - $30
  • White, Edward - $40
  • Other space & aviation - please inquire

Return shipping is based on the carrier of your choice and the level of insurance coverage desired.

To submit or for a quote

For a price quote or to get instructions on how to submit an item, please use the form below.

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Please note that authenticity determinations are opinions based on many years of hobby experience and study of space and aviation autographs. Authentication involves individual judgment that is subjective and requires the exercise of professional opinion, which can change from time to time. Therefore, Zarelli Space Authentication, LLC makes no warranty or representation, does not guarantee authenticity and shall have no liability whatsoever for loss or damages allegedly sustained as a result of opinions rendered.