R-45b, substantial top and bottom margins, punch cancel is common for this issue. CDS - Circular Date Stamp CC - Cut Cancel CV - Catalog Value CZ - Canal Zone. H - Hinged M - Mint F - Fine VF - Very Fine. LH - Lightly Hinged MNH - Mint Never Hinged NH - Never Hinged SF - Space Filler.
VLH - Very Lightly Hinged OG - Original Gum XF - Extra Fine. This item is in the category "Stamps\United States\Back of Book\Revenues". The seller is "bigjake111" and is located in this country: US. This item can be shipped worldwide.