The standard 154 Syracuse-Deere wrench is pretty common, however, I found a possible variant to the wrench today and wonder if Bus, Stan or Wayne Dill can confirm my thoughts on it. I'll have to Email a picture to Wayne sometime too.
The top wrench, while pitted all to crap, is exactly the same sizes and length, but has a loop handle instead of a open end on it. Also has the number 154 on it, but the picture is harder to see than in person. I know it's not in Rathbone's, (at least not where I would expect it to be) and not in Wayne's last published list, but have they or anybody else seen this one yet? Maybe Bus can ask Russ Marshall if he's seen it too, if none of you have.
And while I'm on the subject, what were the 154SC wrenches issued with? Or what parts book did they find it in?