Watch List notes:

Latvia: Rare contemporary forgery of 500 Rubli 1920 P. 8(f), series "S", 4 times stamped "VILTOTA" = "COUNTERFEIT" on front and back, also in the middle in dark ink ovpt. "Viltojums Nr. 7" = "Counterfeit Nr. 7", strong horizontal and vertical fold, center holes, still strongness in paper, condition: F+ to VF-.