We took off north for foreign reaches within the great Commonwealth of PA today.  Along the way, I picked up what I now believe to be a later LaSalle (after 1934) auto wrench. I had originally believed this wrench to be earlier (1927) before I exchanged several informative emails with the GM Heritage Center.  LaSalle's had wire wheels through the 1934 model year. From 1927 - 34, the Wire Wheel Corporation of America wrenches for wheel removals. 

The specifics on the wrench's dimensions:
Length:  8 11/16 inches
Width:   1 3/4 Inches
Large Hex opening:  1 1/2 inches
Middle opening: 1 1/4" long by 1 1/16 inches high
Small Hex opening: 1 inch
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* LaSalle Auto Wrench.jpg (93.45 kB, 283x590 - viewed 4 times.)

* LaSalle Auto Wrench (imprint detail).jpg (132.69 kB, 640x480 - viewed 5 times.)

Neat old wrench! I wonder if there is an equivilent one somewhere stamped with Cadillac markings?