Weaver scopes hold a lot of nostalgia for us old-timers. Weaver made several different scopes, among them were the K series fixed-power scopes without adjustable W/E (1940s-1950s), K series fixed-power scopes with adjustable W/E (1960s and later), V series variable-power scopes (rotating eyepiece- 1960s to early 1970s) V-II series variable-power scopes (fixed eyepiece with a zoom ring- late 1970s on) in both regular and Widefield (TV) configuration, T series target scopes (with and without target turrets), and the unfortunate Marksman series. The K, V and T series came in Micro-Trac (close-tolerance threads on W/E screws and small carbide pads on the end of the erector tube springs) or regular configuration. Marksman scopes had poor lenses and plastic lens cradles and were prone to fail at the worst possible moment.
If you are looking for a period-correct scope for an older rifle, by all means buy the Weaver, but otherwise save your money, there are much better scopes available nowadays.