RCA Victor Reel-to-Reel Tape Splicer Ring-Type

Item for sale is a vintage tape splicer for reel-to-reel tapes manufactured by RCA Victor. Small and compact with a ring-like design. Two cutting edges - one diagonal and the other parallel straight cut. I haven't been able to find any other reference to this model so I'm uncertain of the age. Signs of age. Still sharp, as my thumb can attest. Please see pictures for details.

Dimensions: 1.5" x 1.5" x 1/3"
Weight: 1/2 oz.