Polish–Lithuanian Commonwealth does not fit into topic.
Technically S. Sajauskas, D. Kaubrys; 1993. Lietuvos Didžiosios Kunigaikštystės numizmatika lists three periods, but catalogue got over 30 pages and ids from 1270 to 1587 assigned to coin variants. First numista page includes all three periods, second page only partially covers third period. Maybe merge them all. Also those Kopicki references make it hard to id the coin cause differences are not listed. User must have that reference book to id coin or he/she would rely on seller or grading company to tell him variant.
Periods from SK pages 220-221. Weights are on the optimistic side.
* 1589-1592 - 1.12 gram, 2.6 lots fineness
* 1614-1620 - 0.9 gram, 2.75 lots fineness (listed as 1612-1623)
* 1622-1627 - 0.66 gram, 2 lots fineness (listed as 1623-1627)
