Consists of a thin strip of steel cranked at one end and having slots cut along the length at each end. Over-all length
4.5". Used for adjusting the armature back-stop of A.T. &
E. Co., S.T. & C. and Ericssons’ horizontal-typo relays.
3" long, having a hole and projecting pin at one end. Used for adjusting the back-stops of Siemens’ No.50 Uniselectors.
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Last revised December 27, 2007