The Breda Mannlichers were manufactured for the Greek Military after 1927. Most earlier Greek mannlichers were built in the Steyr factory but the Greek army eventually needed a new order of rifles after WWI. There were some improvements to the rifle design towards the end of WWI. However, the Greeks could not have the due to the WWI treaty of Versailles(1919) they could not be "legally" manufactured in Austria. So Mannlicher sends the actions, barrels, and even some complete assembled rifles to the Breda factory which often assembled the parts on the early ones but Breda soon gave up and just stamped the Austrian produced rifles. Sometimes there are different markings on different parts assembles. Bredas often have a small five pointed star imprinted on the floorplate. Many were shipped to UK where the stampings were removed and were used as a basis on custom bespoke rifles. Many imported to the US were converted to 275 Rigby or 257 Roberts. Szihn is a great smith and his looks very nice. Breda's are generally a lot of rifle for the money.
About 35 years ago I had a sporterized Greek Mannlicher in 257 Roberts for awhile. The trigger was terrible and the whole package was both too long and too heavy, somebody's idea for a dedicated 'chuck rifle I guess. I traded it for something, maybe a Savage 99, at Corey's in Littleton, NH, sometime in the late 1980's. I hope that whoever has it today has had more success with it than I did.