The second piece of the distinctive and rare "efraim" augustd'ora (value 5 thalers).
Issued at the Berlin mint, backdated to 1758, with the initials Efraim (from which the popular name of Polish coins minted in Prussian mints is derived).
Made of low-marbled gold, which is very evident from the colors of the present piece.
Gold (low-polished), diameter 25.5 mm, weight 6.59 g
