Vladimir's probe, Nechay Vassilia Herasimov, initials V-H, 1778-1794.

The Probile Master 1778-1794, Nechay Vassilia Guerasimov, had a glumo with an initial year. There's a year of "1793 in the top of the label," in the lower part of the initials of two letters "B" and "H," the letter divides the point.