Please add the following list of marks (initials) for the Polish-Lithuanian Commonwealth during the reign of Jan II Casimir. These will be helpful for collectors trying to determine which mint struck certain types which many colletors have (see discussion here: Request to merge 6 Groszy 1650-1668 from Polish-Lithuanian Commonwealth into a single consolidated Numista entry – Numista)
Reference: M. Gumowski, Handbuch der Polnischen Numismatik (1960) , p. 187-194.
AT – Andreas Timpf (or Tymf), mint tenant at Poznań 1650-1659, and at Kraków, Bydgoszcz and Lwów 1662-1667
CG – Christoph Guttman, mintmaster at Bydgoszcz (Bromberg) 1650-1652
DL - Daniel Lesse, mintmaster at Gdańsk (Danzig) 1657-1685
GBA – Giovanni Baptista Amuretti, mint tenant at Lwów 1660-1662
GFH – Georg Friedrich Horn, mintmaster at Kowno (Kaunas) 1663-1666
GP – GerhardPyrami, mintmaster at Kraków 1648-1650.
GR - Gehard Rogge, mintmaster at Gdańsk (Danzig) 1639-1656
HDL - Hans David Lauer, mintmaster at Toruń (Thorn) 1649 - 1668
HIL - Hans Jacob Lauer, mintmaster at Toruń (Thorn) 1653-1655
HKPL, KHPL – Hieronim Kirszenstein Podskarbi Litewski, treasurer in Lithuania 1662-1668
IC – Jacob Cramer. mintmaster at Kraków during Swedish occupation 1655-1656
IT – Johann Thamm, mint official at Kraków 1655-1661
NG – Nicolaus Gilli, mint tenant at Poznań 1660-1662
SCH – Stanislaus Chrzanstowski, mint administrator at Kraków 1655-1658
TLB – Titus Livius Boratini, author of copper schilling project, mintmaster at Kraków 1658-1661, mint master at Ujazdow and Oliwa 1659-1665, mintmaster at Vilnius 1664-1666, mint tenant at Bydgoszcz 1667-1668.
TT – Thomas Timpf, mintmaster in Bydgoszcz (Bromberg) 1660-1662
TZH – Theodor Horn, Mintmaster in Kowno 1666
