I just purchased this German martini style rifle and need a little help with the barrel markings.

The rifle is marked on the barrel A. Korinski and Erlanger in gold.  A little research shows that Anton Ferdinand Korinski had a sporting goods store in Erlanger, Bavaria between 1908 and 1920.  Some of the sources that I have seen say the he was not a gunsmith but purchased his guns from others and had his name put on them.  (Kind of like Sears I guess.)

I'll try and attach an image or two but the markings are; I,H (?) 25 4 (?) (in line with the bore) 555 (which seems to be the assembly/serial number, also on the block, forearm,etc.) C (?) E and U with crowns (for proof approved) G with a crown (for rifled barrel) and 172/28 (which is the gauge size and I think stands for 8mm and probably 8.15 x 46R.  The previous owner of +30 years shot it as an 8.15 x 46R with no problems anyhow.  I have not cast the chamber or slugged the bore yet.

The rifle, including the sights appear to be "un-messed with" with an excellent bore.  Both the front and rear sights are windage adjustable which seems a little strange but not uncommon according to some of the things I have read.

Anyone have an idea as to the maker?

"Modify" worked just fine Joe.

Mike

I have one much like yours, mine is a very plain action, no engraving. The rifle appears to be a system von Schatzl. The von Schatzl has an internal hammer that strikes the firing pin in the block. Refer to page 112 vol. 2 of Tom Rowe's Alte Scheibenwaffen. 
Thanks Mile

yup   save yourself  your are in grave danger,, escape the rabbit hole while you can, send it to me, I'll try to save you

No makers mark on mine, it was retailed by A Toman, Worgl Austria.
Mike