[DonVoigt]

I quit studying Japanese when I went over to the "dark side" - i.e. lugers.
But the characters don't make much sense- from the top:
unrecognized
I
so
Type
10
4
Year

so at least part is Type 14 followed by the character for year.

I think they are just characters copied from some where and put onto these two lugers.

Certainly there is no reasonable explanation for putting "Type 14 year" on a luger.
Just a side note, the T 14 was introduced in 1925, not a significant year in luger lore.

JMHO.