The "pre '64 genre Winchester evolved across several principal sub models. All 'incremental'. Beyond 'collector' nuances, notable distinction some find negative is the so-called "flag safety". Not exactly scope friendly, Bit more svelte and scope compatible on later versions.
What you will get is the 'primo' prewar vintage Winchester is incrementally better quality. To me, well worth a premium. Incrementally slicker cycling action. The prewar to early postwar stocks also differ from latter ones, but only in inletting. Of course, no Monte Carlo stock pattern, such arriving in the fifties. All factors equal, I'd definitely prefer the prewar genre! Some exemplars from my collection 'not for prime time' photo files. Close ups Illustrating the safety difference. Coincidentally the inletting "tang area" difference too; more streamlined as latter. Scopes on prewar flag safety models, 'iffy' and 'may' achieve technical clearance, yet be clumsy to manipulate ergonomically.
Returned to add a full left side pix joining brief 'for interest' narrative... Rifle, Win 70 Super Grade, 15K serial range = 1939, in .257 Roberts. The scope is Weaver and scope mounts the 'collector friendly' Stith "no drill" species. Considered as complimenting rather than "extra holes", destroying collectability. Noting too, among collector qualified prewars, I have several 'extra holes' 70 models.... And loving them!
Good luck!
John