USSR Soviet RAM 2-М1-1А Magnetic Ferrite Core Memory Plate 128 byte 1970s

2-М1-1А Ferrite Core Memory Plate USSR 1970.
The memory was made at the Kursk plant "Scotchmash" in the 70s of the last century.
The Plate outside dimension: approx. 4.49 x 4.49 x 0.16 inches
Capacity: 1 ferrite toroid = 1 bit
A 32 x 32 core memory plate stores 1024 bit (128 byte) of data
Weight: approximately 0.07 pounds
The plate is one of 18 plates forming a ferrite core memory block
Condition: Excellent vintage condition. See photo.
Offered storage core plate is an example of magnetic-core storage — devices consisting of an array of magnetic cores.
Up to the beginning of 1970th in the USSR ferrite core memory plates have been woven manually. That painstaking work requiring much rapt attention and perseverance was entrusted to young women with sharp eyesight.