At the time this opium weight was cast, the kyat mass was about 14.5 grams but the weight appears to have been adjusted over time, evident at the top of the base, under the belly of the bird. The patina speaks of its age- significantly oxidized, almost stony in places.
Weight: 10 kyat/tical, 149 grams (adjusted), kyat mass: 14.5g
Height: 4.3cm, 1.7 in
Base: 3.5cm, 1.4 in
Base plan: Circular
Sign: Front Circular Depression
Period: *Gear Group 4 Ib&Ic, 1551-1595, Mollat: H1A, c.1620
* Earth to Heaven: The Royal Animal-Shaped Weights of the Burmese Empire Paperback –2002 by Joan & Donald Gear