A Steeplecab Stumper

Many thanks to Paul Schneble, who sent me a series of corrections and additional tidbits of information (like the builder number for this thing). One thing he pointed out involves the steeplecab shown above, Missoula Street Railway .03, preserved at the Oregon Electric Railway Museum. But after looking into it a bit, I'm just more confused.

Let's start with what we think we know. This thing was supposedly built by General Electric in 1903 (we'll come back to this), was Missoula Street Railway (MSR) .03 (there's photographic evidence of this), and after MSR quit it became Anaconda Copper 351 or L351, depending on which source you use. In 1973 it was pulled off the scrap line along with another pair of early electric locomotives and preserved as part of the OERHS collection. One of these is Anaconda Copper 254, an odd-looking GE built in 1916, and the other is Anaconda Copper 401, a very early "standard" Baldwin-Westinghouse dating to 1912 and described in Joe Strapac's book on B-W locomotives as the very first "Class B" steeplecab built.

What Paul pointed out is that Strapac's B-W book also includes Anaconda Copper (ACC) 351, the locomotive pictured at the top of this post that was supposedly built by GE in 1903, in its B-W order list. But there are discrepancies. Strapac says that ACC 351 was built in 1911 as a Class B, builder #36840, as Western Lumber Company 1. It later became ACC 351. That makes sense, I guess, since WLC was bought by ACC in 1928 - but it doesn't say anything about the locomotive belonging to MSR. And the locomotive itself doesn't look anything like a B-W Class B. For one thing, it's got Taylor trucks!

Strapac's book also says that ACC 351 is preserved at OERHS but it suggests that ACC 401, builder #38616, was scrapped, which doesn't seem right given that the locomotive appears very much preserved.

Anyone have further insight into this? I'd love to know what motors and control (if any) are in these locomotives, but I've never found an OERHS roster with that level of technical detail and I don't know anybody with that organization. If MSR .03 has GE motors, that strongly implies it is indeed a GE. But the mystery wouldn't quite be over even then, because MSR didn't exist until about 1910 and the locomotive's number suggests (though doesn't prove) that it may not have been bought by MSR until as late as the mid-1920s. So, who owned it when it was new? And is it possible that ACC renumbering records got mixed up at some point? If so, is locomotive 401 actually builder #36840 or #38616? Curiouser and curiouser!