6,5x54 Mannl. Schoen., Nr. 5805, vienna proof, 56 cm barrel Rigby's peep sight "Patent / Mannlicher / Schoenauer / M 1903 , "Oesterr. Waffenfabr. - Ges. Steyr", Zeiss Zielsechs, Absehen 1 Target Dot,

https://www.hermann-historica.de/de/auctions/lot/id/274452

called "mannlicher Schönauer" this is a Haenel Model 1909 in 30 06 sold by Peterlongo in Innsbruck

Nr.: 243411, Stutzen with a 530 mm long barrel 'Tiroler Waffenfabrik J. Peterlongo Inssbruck','Original Rasanz Repetierer Mod. 1911'
https://www.dorotheum.com/en/l/7178431/#