Mandolin-shaped watch from Switzerland, 1830-1835. 2.5 inches.
A book (1 inch) which unfolds into a bracelet. Made of gold, enamel, and diamonds. From the UK, circa 1840.
The bracelet is gorgeous. Perfect for your librarian girlfriend (if you’re super rich, obvs.).
A miniature manuscript on a pendant, from Italy Circa 1550 (the Renaissance).
All images reproduced from the Walters Museum under Creative Commons license.