Quote from: tadawley on February 15, 2013, 09:34:16 PM
... National Plow Co. With such a general name, and so many companies called "National," it's a tough search!

Search tip: if you put the terms in quotes it will help to eliminate the other companies. Try "National Plow", for example.

Quote from: tadawley on February 17, 2013, 08:47:46 AM
That NMV wrench is nice! What is the size?

It measures 9.75" long with 2 3/16" and 2 7/16" hex openings. I would guess that it is a hub cap wrench.

Yeah, that would make sense for that size of wrench. I know the early hub caps were octagonal, like the one below (it's hard to see, but I have detailed shots of this one in my gallery):

http://www.earlyamericanautomobiles.com/images/autos3106.jpg

Later, they were hexagonal, like Joe Dawson's Indy 500 machine:

http://worldraider.files.wordpress.com/2012/05/usa-2c2b0-18-indiana-indianapolis-el-museo-modelo-national-motor-vehicle-company-1912.jpg

I may just head up to the IMS Museum and ask my pal to measure the hub cap. Would be quite the coincidence if it was one of the measurements. Thanks for helping figure this all out!

Quote from: tadawley on February 17, 2013, 05:19:34 PM
gallery):
I may just head up to the IMS Museum and ask my pal to measure the hub cap. Would be quite the coincidence if it was one of the measurements. Thanks for helping figure this all out!

That would be great if you do get a chance to measure the National's hub caps. Please let me know what you come up with. A photo of the cap if possible would also be appreciated.