The First Vilnius Issue (1918) Scott 1-2 (Michel 1-2)
Letterpress printing (relief printing) technique was used for printing early Lithuania (Scott 1-8 & Michel 1-8). Genuine full sheets of 20 stamps (5×4) of the Vilnius First Issue (Sc 1-2) can be viewed here.
Because of this (high pressure printing) the stamp’s image is pressed into the paper. [...]

There are few stamp dealers of old school that don’t care for pairs or blocks. It has been a real misfortune to philately of Lithuania because some rare and very fine blocks and even full sheets had been separated to sell individually.
An old stamp collector once said ”We are really only custodians of these for [...]