nameless Haenel or Schilling maybe rechambered to 8x60I in the 1920s
http://www.simpsonltd.com/product_info.php?products_id=54762

" 7,5x60; 90% blue, very good bore, very good stock, 24'' barrel, Receiver ring is marked with 2.67 g G.B.P. over St. m. G.. Barrel, on top at receiver ring with KRUPP STAHL. Checkered pistol grip showing a little wear. Antique., s/n 261xx "

we will see http://forums.nitroexpress.com/showflat.php?Cat=0&Number=305032&Main=304972#Post305032