These older M70's were either used with long tube scopes that used dove tails on the barrel and the receiver ring, or used a wierd scope base. I looked for pictures of Noske, or any pre war mounts, could not find one.
The holes on the left rear of the receiver were for the Lyman 48WJS iron sight.
You either have to find a vintage mount and scope (cost between ouch! & Bong!) or drill and tap the receiver bridge for a modern mount.
Drilling and tapping will just about halve the collector's value of a pristine pre 64, so think carefully about this.