The "Remove the Key" puzzle dates from 1902 — as discerned from its given U.S. Patent number 695059 (See first photo) — thus making it 125 years old! The card is in EXCELLENT condition; I would rate it as "museum quality." The object is to remove the key from the card without damaging any of the three puzzle pieces. The key could then be turned in as a down payment for a variety of household goods, as advertised on the front and back of the card. The card measures 4 1/2 in x 6 3/4 in (11.5 cm x 17 cm), and would make a FINE addition to an antique puzzle collection.
I will ship within the US at non-machinable first class letter pricing (around $4.00). I am happy to ship internationally at cost (around $10–15), but I cannot always guarantee that overseas letters can be insured or tracked. Please do not send payment until the postage cost is determined. Note, sadly, that tariff wars may be in effect for packages received in certain countries.