Great patina.
"Innsbrucker-Sportsohle Marwa-Super" on Sole
Heavy Duty Thick Sole.
Heel Grooves on sides and the Square Toe, indicate these are meant to be clamped into a snow shoe or cross country ski.
These are likely German or Austrian due to the writing on the sole.
Perfect for a Biker/Rocker/Grunger/Santa