Perhaps I see more of the older Marlins, but that auction, for me, falls into the category of, "A lot of talk, and little action."
It is in reasonably decent condition. But, it isn't the pristine specimen that the seller wants you to believe.
There's a lot of wear, everywhere. (Looks to be honest, but wear nonetheless.)
The stock is a replacement, or has the sling swivel stud installed in the bullseye.
The butt plate spacer is broken or incorrect.
The upper butt plate screw is rusty (what else is rusty, but not pictured?).
The forward sling swivel mount is not original.
The stock has been repaired after a nasty split (from the tang out the right side).
The stocks appear to be oil-soaked. (In that age group, you can find unspoiled examples.)
The tang inletting is bad, which means another split is likely in the future. (Could have left Marlin that way, or could be from the repair(s).)
The grip cap spacer and grip cap don't fit properly.
Based on the condition of the exterior, I wouldn't take the seller's word on the bore being 'excellent'.
And, on the collector's side of things, the barrel 'proof' stamp is only half-struck. (Not an issue if you're not "collecting".)
For me, as an internet auction, that's a $300 rifle - absolute max. More than likely, I'd bail out before bidding hit $275.
