Cu 7 with insertion device

Copper 7 coil with a plastic thread. In addition, a small tube and a sliding part with a flat, round handle. Mounted on black cardboard.

Inventory Number
1769
Material
plastic, copper
Size in cm
3,5 x 2,5 x 0,3
Condition
very good
Donor
Univ. Prof. Dr. Robert Snowden