Model T wrench by Diamond?

[lauver]

Originally Posted by Bus

It's an after market Ford Model "T" sparkplug and cylinder head wrench. Besides the millions that came with the Model T and A tool kits several companies including Diamond, Barcalo, Craftsman (before Sears), Walker-Turner, etc. made after market ones.

Model T's had the 1" sparkplug opening and Model A's about 1-3/8". A rule of thumb in telling the difference: If your thumb (or at least my thumb) will slide thru the opening it's the larger Model A.

BTW the Model A's were not marked with the Ford logo after the first few months of the first year of production so the ones with the larger openings that do have the logo are actually pretty scarce.

BUS,

That's good information abut the model T vs Model A spark plug wrenches... but at the risk of sounding ignorant, during what years was the model T made and what years was the model A made? This would help to estimate the date range of the both factory and aftermarket wrenches.

BTW--I picked up a Ford scripted head bolt/SP wrench recently with a 1" opening (a model T wrench), but what's more interesting was an M-circle forge mark on the wrench beam. According to Alloy Artifacts, M-circle is the mark of Moore Drop Forging company. I always wondered what MDF did before they started making tools for Sears ca. 1938-1967.

[rusty]

Here's a really really condensed version....

Model A-Original 1903-1904 (Only 1700 made)
Model B-Original 1904-1905 (Only 500 made)
Model C 1904-1905
Model F 1905-1906
Model K 1906-1908
Model N 1906-1908
Model R 1907-1907
Model S 1907-1909 (R,S are variants of the N)
None of the above models were produced in large quantity...

Model T 1908-1927
Model A 1927-1931
Model B 1932-1934 (4 cyl model B)
Model 18 1932-1934 (V8 model B)

Then it gets really messy...

[lauver]

Thanks Rusty. That's about what I was thinking, but I wasn't sure of the exact years. Model T's and A's were just a tad before my time.

I'm assuming there is an early Ford site somewhere that has the production numbers for both of these models?