It did not look to me anything like any Walden Worcester label I've ever seen.
There is no "H" in Worcester (either in spelling or pronunciation) so I'm inclined to think it was not "WorcHester".
There were a mess of tool makers in Worcester, Massachusetts:
Brosnihan / Sargent Brosnihan / Brosnihan Wrench Co., Worcester Ma.
Coes/ Coes Wrench Co., Worcester, MA.
Lowell Wrench Co. Worcester Ma.
St. Pierre / St. Pierre Chain Corp., Worcester, MA.
Wakefield / J.E. Wakefield Wrench Co., Worcester, Ma.
Walden Worcester / (see also Stevens-Walden) / Walden Worcester Mfg. Co, Worcester, MA.
Warnock / Warnock Mfg. Co., Worcester, Ma.
I think we can eliminate Great Neck as a possibility, as they only manufactured screwdrivers at their Worcester facility. (My brother-in-law was the Great Neck sales manager for North America for several years.)
Thanks for taking a look at that thing, Private Lugnutz. Your eyes caught stuff that mine did not.
I was still vacillating about it when it got sold. Somebody else wanted it more than I did, obviously.
I've gotten a couple other screwball sets from that seller - he finds some pretty odd stuff now and then, but I think he's winding it down as far as Ebay goes. (About 1900 items listed now vs. the 3500 he had listed a year ago.)
The knurling pattern on the end of the sliding "T" handle doesn't match the one in the Alloy-Artifacts picture either.
I guess it will remain a mystery for now.