Great item for chip collectors !!!

Auction rare USSR Soviet Russian CPU/ALU-BSP:

587IK2 - USSR Soviet Russian Military (Rhombus sign) Gold Pink Ceramic Planar - 4-bit ALU-BSP (42 pins, Angstrem plant, 1984)
Bit Slice Arithmetic and Logic Unit ALU, CMDS (complementary metal-dielectric technology), 2543 transistors, 9V, 10-50mW.
 
Intended for organize on-chip and out-chip parallel and serial data exchange, bit different multiple of eight, 
the organization of the interface processors, channels, as well as building blocks interrupts, use peripheral controllers, memory management.

IC from the Old Stock, in working order.