It is a card counter from the 1830s to 1840s. The reverse with the spade pip in the garter is paired with a few dies from around that time.

Obv. Head of George IV to left with GEORGE IV KING OF GREAT BRITAIN above. [Nose to just after I of IV]
Edge Plain, 330, brass, round, 22.9mm, 5g
Xrefs. D&W 309/3; H89 85

Obv. Head of George IV to left with GEORGE IV. BEGAN TO REIGN JAN

29. 1820. above.
Edge Plain, 000, brass, round, 22.6mm, 5g
Xrefs. Batty F1974

Obv. [Q89; QV38] Head of Queen Victoria to left with VICTORIA QUEEN OF «» GREAT BRIT. above.
Edge Plain, 000, copper, round, 22.5mm, 4½g
Xrefs. Batty F1954-7; H89 85

Obv. Head of Queen Victoria to left with VICTORIA QUEEN OF «» GREAT BRIT. above. (Different from previous)
Edge Plain, 000, brass, round, 22.4mm, 3.7g
Xrefs. Personal collection only

Obv. Textured spade pip within a crowned buckled garter bearing HONI SOIT QUI MAL Y PENSE with crossed laurel and palm branches below. [Oval of buckle at right angles to direction of garter.]
Rev. Woman to right seated at table with KEEP Y0UR TEMPER above.
Edge Plain, brass, round, 22mm
Xrefs. Batty F1882