From Verena Stricken (German edition):

Modell 68 - Kindermantel mit gehäkeltem Stehkragen

Material: LANG YARNS „Largo“ (30% Schurwolle, 20% Alpaka, 24% Viskose, 26% Acryl, LL ca. 50 m/50 g): ca. 550 (600-650-700) g Rost Fb 59, „Piora“ (87% Alpaka superfine, 13% Schurwolle, LL ca. 50 m/ 50 g): 100 g Rost Fb 59

From Verena Knitting (English edition):

Finished measurements:
Chest including front bands: 32.25, 34.25, 35.25, 39.75”
Length: 21.5, 23.5, 24.75, 26.5”
Upper arm: 11, 11.5, 12.5, 13.75”

Yarn requirements:
Lang Yarns Largo:
11 (12, 13, 14) balls in #59 rust

Lang Yarns Piora
2 balls in #59 rust

Also requires four 1 1/4”/30mm buttons