I received an interesting email from a man in Belgium who writes:
Hello,
First of all, I would like to wish you an excellent year 2025.
I am writing to you from Belgium to seek information that I have been unable to find locally or on the internet regarding manufacturer plates from the St. Louis Car Company (see attached photos). Could you please provide me with any information or direct me to sources regarding the model, type of machine, or any other reference on which these manufacturer plates are affixed?
Thank you in advance for your assistance, and I apologize if this email has caused any inconvenience.
Best regards,
[Name withheld]
He included ten pictures, but they're all pretty similar. Some are B-2. I would say these are obviously manufacturer's plates from PCC trucks that St. Louis exported to Belgium, presumably right after WWII. I don't know if anybody would have documentation that would identify exactly when they were built or for what particular order of cars.
Now I'd like to find a good picture of a St. Louis PCC truck. This is a Clark B-2, and it's partly disassembled and missing the motors, but it's the best I could find quickly: