The unit designation on the Identification Disc, [10./J.R. 334 (9?)] would indicate the 10th company of the 334th Jäger Regiment (Heer), only problem is that there were no 334th Jäger Regiment?! Anyhow, nothing on the Identification disc indicates any connection to the 7. SS-Freiwilligen-Gebirgs-Division "Prinz Eugen"...
Just my two pennies,
"Wie es eigentlich gewesen ist"
Leopold von Ranke (1795-1886)