Email Opinion

An informal opinion via email based on a large, clear photograph. This may detect forgeries, Autopens, secretarials or if an item may be authentic. It may be impossible to determine through a photo if an item is a copy or a 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.

Email Opinion
  • Email a link or a large clear photo of the item to
  • 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.

Letter of Authenticity (LOA)

Letter of Authenticity with tamper-EVIDENT hologram and embossed seal. Heavy 100% cotton archival quality paper.

For a Letter of Authenticity (LOA), you must submit the item(s) for a comprehensive in-hand review.

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.

  • Aldrin, Buzz - $40

  • Anders, Bill - $35

  • Apollo 1 crew - $125

  • Apollo 8 crew - $85

  • Apollo 11 crew - $125

  • Apollo crew (other than 1, 8 and 11) - $60

  • Armstrong, Neil - $90

  • Cernan, Gene - $35

  • Challenger & Columbia crews - $125

  • Gagarin, Yuri - $35

  • Gemini crew - $50

  • Grissom, Gus - $40

  • Irwin, James - $30 (except white spacesuit portrait)

  • Irwin, James (white spacesuit portrait) - $80

  • Mercury 7 group - $125

  • Schmitt, Harrison - $40

  • Shepard, Alan - $30

  • White, Edward - $40

  • Young, John - $40

  • Other space & aviation - please inquire

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.