I buy MAC tools when I can find them in the historical wrench section. I have a couple of duplicate sizes. These are both marked 11/16. They are both similar in style, but the part number on one is unusual. The top one is MAC C 8, the other is marked MAC C 8 8 8 perhaps someone customized it with an identical size and style digit, or it just got stamped a couple extra times.
Weird. I think it’s cool. I have found poorly struck wrenches, but never seen extra digits.

Just thought it was interesting.
alton1911
Weird. I think it’s cool. I have found poorly struck wrenches, but never seen extra digits.

Just thought it was interesting.
alton1911