There's a nice Moore 72 on ebay, a pretty nib. I collect the sturdy little ringtops, but it looks like the ringtop was pulled off sometime in the dim past, leaving a shallow divot behind.
It could be a bargain or a world of hurt. My strategy is to buy a gutted Wahl ringtop (which has a nice ring mechanism - nicer than Waterman's) for cheap, and ask one of my expanding series of pen repairers to try to marry the pieces together.
I'll do a lot for a good nib, but is this an idiotic idea? Please advise.