They were published by Longmans Green and were, unusually, of nine inch length. A twelve inch, spring steel, double sided one by Rabone & Sons of Birmingham, no.64A; a six inch no.417D double sided pocket rule by Chesterman, Sheffield; and a nine inch, three fold, no. More steel rules are on the Workshop Measuring Tools page. Retailed by B T Cheshire & Sons Ltd, Stationers & Printers, 22 Queen Street, Wolverhampton, whose label is on the card case.
The rule is made of wood in three sections, joined longitudinally with inset brass strips at each end and celluloid facings pinned through the brass strips at the ends.
I also have ivory and boxwood folding rules, and steel rules. I would like to know more about this scale and how it was profile, the bottom face being flat.
There are also a number of promotional rules, many from the building trade, not included here. It has a total of 16 scales, many of which can only be used with the aid of dividers.
I have a large collection of scales and rules and it is only possible to show a few of them here.
They range from eighteenth and nineteenth century ivory ones, through flat and triangular boxwood ones, with and without celluloid facings, to modern plastic ones.