Unless you have a lot of time and money to search for and pay for a Leupold repro of Lyman Alaskan, the best approach would be a fixed power scope in the lowest rings. A scope from between the wars, as if the original owner had modernized would be of lower optical performance.
A Weaver K3 with no objective bell would look about as close as you could get with reasonable glass. Otherwise about any fixed power scope would be serviceable and not very expensive. Lots of used fixed power scopes out there.
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