Looks like a good solid example.
ditto, looks like a good m42.....hkp66
wow, awesome find, that decal looks fantastic!
Looks ok to me like known good one.
[h=3]e plu·ri·bus u·num[/h]
Nice pot! Now you gotta find a good chinstrap for it ! William
"Much that once was, is lost. For none now live who remember it."
That's a beautiful helmet.
Looking for WWII U.S. dog tags
For not being a helmet expert you sure picked a real beauty.
Great helmet-not much room to upgrade this one.
Regarding the lettering inside...
If as 4md says, it is a "hkp66" then here is what I can tell you...
hkp - manufacturer's mark (Sachsiche Emailleer und Stanzwerke, Lauter)
66 - size (large)
The other, usually three or four digit number refers to the production or batch number (example 3015)
p.s. That is a very nice helmet, well done!