bob turner wrote:That is a B&O tender - The trucks are SP tender Commonwealth. I think they also were used on B&O tenders.
I will vouch that the post-war Lobaugh USRA Light Pacific indeed came with those trucks, which indeed look like they came from a passenger car. These shots are from the files:
The original pre-war Lobaugh B&O Pacific had different trucks, if the catalog photo is to be believed: