The exposition turned out to be bigger than I expected! You can find out in detail where and when books and printed publications began to be printed in Armenian. I was without a tour, so I was given a printout with a description of what is presented in each of the halls.
A nice little museum. I am not sure that it is correct to call it the "Museum of Typography", in English it is called the "Museum of Printing". Rather, it is a museum of printing in Armenia. Samples of printed materials from old books to Soviet newspapers and posters are on display.
Printing presses and other equipment are on display.
A specific museum, not interesting for everyone, but complementary to the Matenadaran, located nearby.