Those are the typical type style of a letterpress serial numbering device's output, and while someone may have made a font that will match it, I have been unable to find it for you, but my comment may give you a better idea of what to look for.

Thanks George for the insight.
These numbers combine an "over rounded" geometric letter style -- somewhat similar to Helvetica -- with an open top 4; characteristics that are found in some 19th century fonts, but very rarely in modern digital fonts.
The closest I found were the numbers in a font designed by Steffen Sauerteig as a machine readable font using 1990s technology: Typestar.
Don

Also close: Andes.
Don

Tnx for replies)