The top picture is of the Collins manufactured BR-1 Crystal Calibrator for the A-Line receivers. Note the nice little handle that allows easy removal and replacement. One of the issues that has been evident in the Collins Collectors market is that people don't know what the standard Crystal Calibrator looks like. I bought a receiver from a unknowing seller that should have had a BR-1 in the receiver. I received a receiver that had a very professionally manufactured Crystal Calibrator. The statement to remember here is "Be aware" these units sell for $200 in the Collins Collectors market.

The picture below right is of a CV-1221 FSK converter manufactured by Collins radio for some OEM application. I am not sure what system this unit went into and I include it here more as a FYI.