De or het handpenning?

The correct Dutch article is:

de handpenning

Rule Words ending in -ing: almost always de. See the rule

How to use handpenning

the handpenningde handpenning
this handpenningdeze handpenning
that handpenningdie handpenning
our handpenningonze handpenning
your handpenningjouw handpenning
every handpenningelke handpenning
which handpenning?welke handpenning?
a big handpenning / the big handpenningeen grote handpenning, de grote handpenning