Thanks for the note! The value of antique passports depends on a lot of factors: how many stamps are there? What countries did the person visit? And generally, passports with attractive individuals depicted achieve more when sold than those with old gentleman or ladies. If the person can be found on the Internet as someone of note, that also helps the value. Generally, these late 19th century Passports with stamps sell at the $25 to $40 level, though exceptional ones that document substantial world travel can sell for as much as $100 at auction.
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