[rose]

I'm sorry, I really do appreciate your concern, guess I am bamboozled, got off on my tirade and forgot to acknowledge gratefully your suggestion. Did not mean to be so unthoughtful.
After 18 months of dealing with my grandson(am his legal guardian), I have become harsh sometimes, and am working on it. Thank you a lot.

[Jim Hill]

Seems like it would be a fairly simple process to slightly raise the numbers at each of the four corners where the denomination is indicated without changing bill size, adding braille, etc. With appropriate texturing of the elevated areas it would be difficult to alter or counterfeit. Or texturize the entire surface of the bill . . . vertical lines = $1.00; horizontal lines = $5.00; diagonal lines = $10.00; crosshatch lines = $20.00; etc.