Some interesting Threads keep being revived! smile The "genuine" Marauders of the sixties, were ONLY produced with "W" or "Z" serial perefix. (Don't ask me "Y", pun intended!) A nicety which fakes typically ignore and such their undoing as to knowledgeable buyers. These have been particularly collectible since at least the eighties. The so called "Waffle Top" Marlins, so named foe the wavy line decorative (actually anti-reflective) pattern atop the action, were discontinued a decade before the Marauder sixties era. For me, the mainstream collectible Marlin era ended in early eighties as the crossbolt safeties were introduced. Thus 1948 Model 336 intro and about 1980, an extended 'sweet spot'.
Best!
John