Here's another one from the same period of 1992. The stamps are Sc 314, 315, 319, 320, 310, and a block of 4 Sc 308. Could someone give me the number for the 500k envelope please? One thing I love about the post office at that time was how every clerk that touched the cover along the way added his/her ID hand stamp.
# A18 in the specialized catalogue of Latvia. A lower value exists,50k,#A10 Here it is on a registered cover to Tallinn,Estonia,with additional and mixed franking (Soviet stamps were still valid at this time)