[Mg-mmm] lubrication plates

[Carr&Edwards]

Seeking help from the list!

I have found two sets of the plates (A-B-C/D-E-F) that hold the nipples for
the lube system--they apparently strayed from the boxes of my PA stuff.

Both sets are made of brass, but one set is brass-colored and has printed
black lettering; the other is chrome plated and has incised black lettering in
a larger font.

Can someone tell me which is as-original, and which is an (incorrect) repro?

Many thanks,
Sarah Carr