On FB Nippy group, there is a discussion on the exact measurements for gearsticks - but some of you aren't on there! The difficulty seems to be that you can measure in lots of slightly different ways. The knob can also extend the length if not screwed down on the thread.
To get some comparative measurements, it has been suggested to measure from the very EDGE of the chrome plate to the top of the knob, in a straight line, also noting the amount of thread showing. I compared a box saloon and a purported Nippy lever and the angle of the former was less than on the latter. On the Box, the angle is "a right angle... plus half of a right angle" approx. i.e. about 135 degrees. You can sketch the radiused line on paper directly against the stick, and then extrapolate to take angle to a point and try the right angle thing.
Any data you can volunteer?
Bill S's post from old forum:
"1923 lever from top of gate to top of knob = 10"
1928 lever from top of gate to top of knob = 12 1/4"
1929 lever from top of box to top of knob = 16"
Ruby lever from chrome plate to top of knob = 19 1/16"
Nippy lever from chrome plate to top of knob = 17 1/16"
Type 65 factory drawing of ditto = 15 7/8" ? (Would think it should be longer than a Ruby one as you're sitting further back?).
First two - knobs aluminium 1 1/4" diam
Later ones plastic 1 3/16" diam".
Here is 1933 (65) drawing, but measurement is to pivot point in box lid and not to edge of ball. But angle assessable.
65 gearstick.jpg (Size: 43.69 KB / Downloads: 144)