Ferreed switch crosspoint, mounted in perspex bloc

Made:
1970

Buy this image as a print 

Buy

License this image for commercial use at Science and Society Picture Library

License

Science Museum Group
© The Board of Trustees of the Science Museum

Ferreed switch crosspoint, mounted in perspex block 3" square x 1", 1970

Details

Category:
Telecommunications
Object Number:
1971-19
credit:
Bell Telephone Laboratories (New Jersey)