Coming from a background in GB stamps, I am having some trouble in assessing the relative merits of multiple copies of older US stamps.
Take two copies of the same issue -- not the true rarities, but perhaps an older 20C regular (1920s/1930s, say). Which would be more desirable:
A the one with ok centering and a part-cds cancel, but with 3-4 heavily nibbled (almost flat/absent) perfs on one side
or
B the one with awful centering (huge margin at the bottom and the picture is cut into by the perfs for about 1 mm at the top), plus a heavier line cancel, but with perfs scoring about 9.5/10 (just a bit shortish in one corner)
In GB, I would have no hesitation in keeping B and discarding A, because in GB stamps, even of (say) the 1850s, there are so many undamaged examples to be had, that I wouldn't give a damaged stamp house-room.
However, from my perusal of US stamp websites (not to mention the Scott #1 and #2 on
ebay!) it seems that undamaged older US stamps are much rarer? So perhaps the nibbled perfs in my A are not so offensive as to detract from its better (though still not superb) centering and lighter more pleasing cancel?
Or is "damage" only ok in the most rare examples or before a certain date -- and if so, why does Scott have so many stamps missing perfs/corners in its illustrative photos?
Your thoughts and advice would be most gratefully received.