I have the original gallon markers and I can see the slight indentations where the numbers are located.

What is the best way to get black numbers back on these markers? Obviously it would be to paint them but I am an old coot and hands are not that steady. Is there any outfit out there that can paint/put numbers on these markets? Any other alternatives out there?

black permanent magic marker

i've used this in many instances...including black lettering on hubcaps....way better than paint!!! goes on real even and doesn't run!

good luck

Or get some Vinyl #'s to use.