I picked these two up last week at a big tool hoarder's sale.
I like the 2-foot boxwood & brass because I have never seen what I would call a "trifold" rule. It's marked out in 8th, 10th, 12th & 16th inch increments and the only branding on it is No. 58.
Research indicates it's a Stanley and shows in catalogs from 1859 to 1909. Stanley made a No. 58-1/2 that was brass bound on the edges during the same years and an ivory version of the same rule (No. 60) from 1867-1892.
Stanley nomenclature calls them all Two Foot Six Fold Rules. That just goes against my upbringing--I guess if Stanley built biplanes, they would have called them quadplanes and a triplane would be saddled with "hexplane".
As far as I can tell, this was the only time Stanley made a rule that folded into thirds.
The 50' No.4351 from John Rabone & Sons (Birmingham, England) is a steel tape in a black steel case. The tape is marked "London Made In England" and "Rabone" and has 1/8" increments. The back of the tape is blank. It is depicted in catalogs from
William Marples & Sons, Ltd., from 1928 through 1959. In 1963 Rabone merged with James Chesterman & Co. and thereafter branded their products under the Rabone Chesterman name.


