While clearing out boxes of old files from a Miami Police Department storage facility, an inquisitive clerk noticed an arrest card of Alphonse Capone dated May 8, 1930 (putting him at 31 years old).
In her online appraisal, appraiser Judith Katz-Schwartz explains that documents signed by Capone are highly prized by collectors. She advises that, "at the very least you should provide some provenance to go with this card. A letter from the Miami Police Department employee from whom the document was obtained, swearing that it is authentic would be a help." She also recommends, "Before you try to sell this item, it would be advisable to have it authenticated, and to ascertain that the signature is original."
Whatsitworthtoyou.com advises that once an item has been appraised online and has been estimated to be of high value, a full physical appraisal is often desirable, particularly for people who require a guarantee of authenticity and genuineness of their item, especially for insurance purposes.
