This is my favorite receiver Krot-M.

Receiver Krot developed in 1947 was based on the ideas designs of German receivers Telefunken T9K39, E-52 “Koeln” and american AR-88.
Receiver was produced from 1948 to 1952 in Kharkov City, the USSR.
Upgraded model (Krot-M) was produced from 1953 to 1960.
Some time ago this receiver was used in the radio reconnaissance of the MGB of the USSR and was secret.