love letter charm

An 18 carat gold charm in the shape of an envelop with a small diamond heart that opens to reveal a little love letter, signed and numbered: Cartier, 910224, USA, circa 1980.

weight: 7.4 grams (including chain)
height: 2.5 x 1.1 cm
length chain: 50 cm.

Period1950-1960-1970
HouseCartier
PriceSold
Please find me a jewel like this