Correct 19MM Lug Wrench for '70 911T

[Hoyarunner]

Help Needed!

Can someone please tell me the difference between an OEM Klein 19MM Lug Wrench with tapered end that has "19MM" stamped on the handle versus one that has "19MM" stamped on the outside (or barrel) of the lug wrench itself. From looking at pictures of tool kits for sale on the Registry and Pelican, it seems like the ones stamped on the head or barrel of the lug wrench might be for a 1970-71 tool kit while the ones stamped on the handle might be for a 1972-73 tool kit. Is that a correct assumption? Is it possible that one was used for 911s and the other was used for 914s and 914-6s? If some of you savvy Tech and Concours folks could share your knowledge, I would greatly appreciate it.

Hoyarunner