Prt-668.
tin 20 bazarucos (15.04g), 1765, KM-36, Album (2012), sale 12, lot 1276

Wt = 15.2g. Diam = ~32-33mm. 20 Bazarucos, 1765
Photo from Zeno posted by Keesuit

Wt = 17.54g. Diam = ~36mm
Photo from Coins.ee, sale 65, lot 655