This collection of boringly looking tomes was published in 1956-1961. They were intended for sales workers to learn about peculiarities of this and that product. There, you could find information almost about anything, from ingredients of the 'Doctorskaya' boiled sausage to kinds of diamond cuts. So, looking at these tomes, you might come to think that in the USSR they had no food deficit at all.
Sturgeon caviar: processed pressed caviar, beluga granular caviar, pasteurized caviar.
Beluga, sturgeon, sevruga.
Doughnut-shaped bread rolls: with sugar, lemon flavor, poppyseeds.