James Cox

1880 · carved yellow and light brown agate from a single piece.

Overall: 15.2 x 6.4 cm (6 x 2 1/2 in.); Box: 5.7 x 2.9 cm (2 1/4 x 1 1/8 in.)

Cleveland Museum of Art

1770 · gold, agate, enamel dial, glass

Overall: 16.5 x 8.9 cm (6 1/2 x 3 1/2 in.)

Cleveland Museum of Art

1766 · Case: gold with diamonds and paste jewels set in silver, pearls; Dial: white enamel; Movement: partly gilded brass and steel, wheel balance and cock of silver set with paste jewels

Overall: 10 1/4 × 6 3/8 × 3 1/4 in. (26 × 16.2 × 8.3 cm)

The Metropolitan Museum of Art

1765 · Outer case: gold, partly enameled and set with gemstones and paste jewels; Inner case: gold; Dial: white enamel, with frame set with paste jewels; Movement: with diamond endstone

Overall (with bail, confirmed): 2 1/2 × 1 3/4 × 15/16 in. (6.4 × 4.4 × 2.3 cm); Overall (outer case, confirmed): 3/4 × 2 1/16 × 2 1/16 in. (1.9 × 5.2 × 5.2 cm)

The Metropolitan Museum of Art

1765 · Case: moss agate, mounted in gold and set with diamonds, rubies, and emeralds; silver; Dial: white enamel, with frame pavé-set with paste jewels

Overall (confirmed): 3 3/8 × 3 9/16 × 2 1/8 in. (8.6 × 9 × 5.4 cm); Overall (.128b–e): 1 1/16 x 1 x 13/16 in. (2.7 x 2.5 x 2.1 cm); Overall (.128f): 15/16 x 7/8 x 13/16 in. (2.4 x 2.2 x 2.1 cm); Overall (.128g, h): 3/4 x 1 3/8 x 15/16 in. (1.9 x 3.5 x 2.4 cm); Overall (.128i): 1 1/8 x 2 7/8 x 7/8 in. (2.9 x 7.3 x 2.2 cm); Overall (.128j–m, each): 2 13/16 in. (7.1 cm); Overall (.128n): 2 3/8 in. (6 cm); Overall (.128o): 1 5/16 in. (3.3 cm)

The Metropolitan Museum of Art

1760 · Case: agate, mounted in gilded copper and gilded brass and set with painted enamel on copper plaques, and fruitwood; Dial: white enamel

Overall: 13 1/2 × 9 3/4 × 7 1/2 in. (34.3 × 24.8 × 19.1 cm)

The Metropolitan Museum of Art

1755 · agate, gold and diamond. mounted with 18 KT gold cagework

Overall: 10.2 x 7.6 cm (4 x 3 in.)

Cleveland Museum of Art

1755 · Case: agate, with gold mounts, gilded brass, pearls, and paste jewels set in silver; Dial: white enamel; Movement: wheel balance and cock set with paste jewels

Overall (confirmed): 12 1/8 × 5 3/4 × 4 1/8 in. (30.8 × 14.6 × 10.5 cm)

The Metropolitan Museum of Art

1750 · gold-mounted agate, periscope mirror for side viewing

Overall: 5.1 x 3.8 cm (2 x 1 1/2 in.)

Cleveland Museum of Art

1730 · agate and gold

Overall: 7.3 x 8.3 x 6 cm (2 7/8 x 3 1/4 x 2 3/8 in.)

Cleveland Museum of Art