Here are the specs for Standard
height of foot .675" (one of the tallest)
clamp gap .175 - they pretty much come in two sizes, .125" or .180" there is some slight variation on the larger gap, but it does not seem significant - meaning there is going to be something else that is enough different to determine the machine they fit.
Bar to needle .478" (just under .5")
Needle hole is offset slightly to right.
I have tried fitting feet on different macines, and Standard only takes Standard, and so far I've not found another machine that they fit (and I've got over 15 different Mfg of US made machines of this era).
Last edited by Macybaby; 06-10-2014 at 04:48 PM.