I had a 1914 commercial ,with commercial and military serial number placement and a circle S. Bill

Thanks,
Learned something new again.
I'll do it, had questions on a couple others too.:thumbup:

I agree with Dwight that it would be misleading to call this and similar markings a "1921 property mark." If it is legitimate, it is a misunderstanding of the 1920 property marking instructions.

I too am curious about the "25" stamp.

I was/am at a loss of what to call it, it is not a date; nor am I sure it is a spurious marking.

I perhaps should have called it a "possible 1921 stamping error in marking of the 1920 property mark or a spurious 1921 property marking".

Sounds good, Don. I'll bet there is a single German word for it!

Don,

You were asking a good question based on the information you had at hand. Don't over-think it.

--Dwight

Yes, one of about 29 syllables!