Compact Simpson's 3/8 Rule(??)

[Dieter]

(12-19-2015 01:51 AM)rprosperi Wrote:  There doesn't spear to be an English version of this page. Oddly, when I saw your link, my thought was "the machine gun? - nah, can't be..." so I was a bit surprised upon seeing the gun when I go there.

That's exactly what this number originally referred to: it's the model number which stands for the year of construction (1908 resp. 1915).

(12-19-2015 01:51 AM)rprosperi Wrote:  Is "08/15" used to mean a derived or improved version, or something similar?

The "08/15" was a common piece of equipment with a rather modest reputation among its users. And this is what that number stands for today: if something is said to be "08/15" it is something not very sophisticated or special, but standard (or even below-standard) and widespread. As this is a calculator forum: think TI-30. ;-)

Dieter