Hello All - I am interested in adding a couple of the higher denominations of this imperf series to my US collection. I saw a few at a recent show/bourse but am uncomfortable purchasing anything without a certificate. Are there any basic IDs that a person could use to make sure they are getting, say a #17 and not a #36 with removed perfs? I saw a post recently about the certification of #315 singles is usually based on a minimum heights/widths. Not sure if something similar might apply to the 1851-7 series.
The couple dealers I spoke with said they would grant an extension but if there's something obvious I could check on the spot, it would save everyone's time and effort. Thanks in advance.
Sc #17 and Sc #36 (as opposed to #36B) were both printed from the same plate, and so are identical except for the perforations. So the only way to know for sure is to have a #17 that has enough margin to show a portion of an adjacent stamp.
"So the only way to know for sure is to have a #17 that has enough margin to show a portion of an adjacent stamp".
Even that wouldn't prove it unless the opposite margin is wide enough to make it certain; it could just be an off center example. But very few trimmed examples seem to be around, since the 36 has about an equal cat value.
I was looking at some #12's and #17's in the Stamp Smarter PSE Cert database and there are quite a few that don't show any portion of an adjoining stamp. There must be a minimum size that they use in order to make the call.