Quote:
Now what is a contemporaneous cancel that's what a 331a has?
Scott 331a, the full booklet pane of 6 stamps, like other booklet panes of this era, is valued higher by Scott than its unused equivalent. To deserve this value, Scott notes that a used pane must have a "contemporaneous" cancel, that is one from the immediate time period of issue, NOT one a decade of more later likely from a philatelic use.
Your stamps are not a full booklet pane, nor do they appear to have a clear identifiable cancel to style or city or date as near as I can tell. At present neither does Scott provide a value for less-than-pane multiples or singles from booklets, even though identifiable. Subsequently, there is only a modest market.
It is unfortunate these are no longer on the original cover.