Scott C8, 3 Sides Perf Only?

Perhaps someone can help me find this stamp in a catalog. I have a Scott #C8 without perfs on the right side (see pictures). I have checked the current Scott Specialized catalog of US stamps but have not found such a stamp listed. Am I looking in the wrong place or lacking the necessary experience. Please help me out. Thank you,
stamphawk

There is nothing wrong with the stamp – it is a standard Sc# C8. These stamps were produced in four (4) panes of 100 stamps each. The stamps positioned at the center (gutter margin) are imperf because of the sheets being guillotined (cut) at the intersecting planes to create sheets of 100 each. If memory serves me, stamps of this issue may appear with at least two straight edges.

Your stamp would be from an Upper- or Lower-Left Pane of 100 stamps and they not considered varieties. These stamps may be found with and without printers "cut" lines. (In your case, the cut lines were removed at the time the pane of 400 was cut.) This is how U.S. Flat plate issues were produced and production finished.

This is also why you see mention of "re-perfing" of early U.S. Issues frequently in the SCF. The more valuable denomination US issues are never seen with this straightedge; they have been re-perfed.

I also believe this is discussed in the front of Scott Specialized Catalogue and while I personally see no problem with a stamp with a straight edge – it is a normal production stamp – U.S. some collectors dislike them (you can't please everyone) and they are discounted by the % of missing perfs, or more; then everything's based on the overall symmetry side-to-side /top-to-bottom. Your stamp is a gem!

Hal

Hal has provided good info and made several good points.

I would only like to clarify that #C8 was printed in a (press) sheet of 200, and cut into 4 panes of 50.

KHJ, many thanks for correcting me.

Hal

Thanks to both of you. As I stated in my question, 'lack of experience'. But believe me, never too old to learn. Again, thank you very much.
stamphawk