1061 - Northern Telecom QCM486

100 pair test tablet, this tablet can be found on many other USA origin MDF blocks

6001 - Cosmic 299A (Lucent)

100 pair block

Western Electric 310 or a Model 2123

Cosmic 13/45

Model 341 Test Connector

Model 333 (340) Test Connector

 

 

Model 308 Test Connector

 

 

Model 344 Test Connector