Saxman, The 1920 property stamps are a different size and configuration. And the numbers are usually spaced farther apart. Here for comparison are my 1921 Reichswehr and my 1921/1920 police re-work. You can see the obvious difference.
Kind of nice to find out you may have something alittle more special than you thought. Thanks for looking. Maybe if you could post a photo or two of yours?
Ron
