Officer Service Decoration (Tiszti Szolgálati Jel) – instituted in 1992 in 3 classes for 30, 25 or 10 years’ service. I this is the 30 years one, but was struggling with rather obscure Hungarian descriptions in the regulations!
Thank you for your time and effort! When I was trying to ID it I looked on your website and noticed that you did not have it. When I photo it against a black background and post it to the OMSA database please feel free to copy it for your site as well.