Looks like a interwar years Suhl made rifle. Mahrholdt/Peterlongo had many of "their" guns made by the Suhl guntrade, especially Schmidt & Habermann Look out for a tiny "Esha" stamp hidden somewhere under barrel. The half-octagon ribbed barrel and the bolthandle treatment are typical Suhl features.
Richard Mahrholdt, 1878 – 1949, had many relations to the German gunmakers in Suhl, Zella – Mehlis and Soemmerda. He was a close friend of the Burgsmuellers in Kreiensen. After Johann Peterlongo passed away in 1898, he took over and ran the company as "Tiroler Waffenfabrik Peterlongo, Richard Mahrholdt & Sohn". From 1918 son Herbert Mahrholdt managed the business. Later grandson Erwin Mahrholdt took over until the shop closed down in the 1970s.