Full Details

Name and Model Number Hemmi 258 / Post Versalog 1460
Country of Origin Japan
Date of Manufacture June 1951
Front Scales LLO, LL/O, K, DF [ CF, CIF, CI, C ] D, R1, R2, L
Back Scales LL/1, LL/2, LL/3 [ T, ST, S, C ] D, LL3, LL2, LL1
Scale Length 25 cm
Type of Rule Slide Rule
Construction Celluloid on Bamboo
Area of Use Generic
Comment Cardboard box has Hemmi markings only, including a label on the end
of the box identifying the slide rule as a No. 258, and a price on the
back of the box of ¥2.500. Cursor has Hemmi markings, but no Post logo.
Rarity RR
Donor Photo courtesy of Jodie Hobson
Match Number 331
(Click Picture for Details)

In conjunction with our 'donors' we assign a rarity rating to each item, based on the system devised by Herman van Herwijnen
(1929 - 2004), renowned Dutch collector, author, and creator of Herman's Archive, a collection of 5,000 slide rule images on CD.
• RR = Rare - 1 of 25 collectors has one; it may take a year to find an example in the marketplace.
• RRR = Very Rare - only a few known to collectors; may be several years before it comes up for sale.
• RRRR = Extremely Rare - a museum piece; unlikely that an example will come up for sale.