Gentlemen,
Looking for some facts from our Oberndorf Mauser experts, Note the shape of the front trigger on this DST on this gorgeous Mauser of Dons. It seems this shape trigger set is only encountered on about 5% of the prewar Oberndorf Mauser sporting rifles I see, who can tell me the history of it or suspected source and why is was encountered on so few Oberndorf Mauser sporting rifles? Looking forward to any document source in print explaining this type, also looking forward to opinions.

Thanks
m4220