Amprobe / Amptran CT-50 1972 SOS Consolidated Inc. Electric Current w/ Case RARE

Description

Amprobe Instrument  -  Amptran CT-50
Division of SOS Consolidated Inc.
Dated 6/1972
Snap around (split-core) current transformer designed to extend the current ranges of the Amprobe  RS and Current Recorder models supplied with A60FL, A65FL, A70FL, and A75FL transducers and Time Sharing Recorder Current Transducers 50 times up to 5000 amperes continous duty.
RARE, HARD-TO-FIND!!
UNTESTED.  Great Collector's item from the 70's!  May work but no way to test so being sold AS-IS, NO RETURNS!
The red leaver to open the unit is missing and has a green pull cord to operate.
Please see pics for more detail.