Could be an old beat up original.. You really got to give a look as Mike says in the recesses and around for faults..

Clean out that triangle hallmark! A toothpick,,small stiff brush,,maybe compressed air. The mark inside should not be worn away inside..

The eyes were not done well at all.. Heres a topic on the different cuts used.:

https://forum.germandaggers.com/ubbthreads.php?ubb=showflat&Number=347633#Post347633