Slide Rule VERSALOG Post 1460L belt loop leather case

new condition. unused in original leather case and box.
1 Versalog Post laminated bamboo slide rule (835188) with metal bound cursor, hairline precision engine-divided scales, by Frederick Post Company
burgundy hard leather case with soft interior.
belt loop
original box (worn)
the leather case and slide rule both have a label S.W.C. (this was a gift for my paternal grandfather, Stayner White Call). He owned many of these... as a Math Teacher, Scientist, and Notary Public... in Star Valley, Wyoming.