Blank Stamps
Truly blank stamps have few distinguishing features to separate them. Scott 2006 lists 25 different blank stamps. The tables below separate them by perforations and list other features that can be used to separate them from each other.
Table 1 non coil blank stamps
| Perf-V | Perf-H | Scott # | description |
| 12 | 12 | TD 9 | soft paper unwatermarked |
| TD10 | watermarked 191 | ||
| TD 86 | |||
| 11.25 | 10.5 | TD 85 | |
| 11 | 11 | TD 113 | green tagged |
| TD 114 | orange tagged | ||
| 11 | 10.5 | TD 83 | gum breaker ridges 5.5mm |
| 10 | 10 | TD 84 | gum breaker ridges 11 mm |
Table 2 coil blank stamps perforated vertically
| Perf | Scott # | description |
| 13.25 | TD30 | Rouletted perfs |
| 10.5 | TD 45 | Smooth gum |
| TD 79 | Zeigle White Shiny smooth gum | |
| TD 80 | Zeigle Blue paper | |
| TD 81 | Zeigle Green paper | |
| TD 82 | Zeigle Yellow paper | |
| 10 | TD 75 | ribbed gum |
| TD 76 | Red lines 13.5mm apart | |
| 9.75 | TD106 | Over all tagging |
| TD 122 | Untagged |
Table
3 Other coil blank stamps| Perf | Scott # | description |
| Imperforate | TD 44 | Smooth Gum Imperf |
| 10.5 Horizontal | TD 72 | Marked "Schermack Dummy Stamps" |
| Private perf | TD 46 | Schermack Type III perfs |
| Private perf | TD 47 | Mailometer Type I perfs |
| Private perf | TD 48 | Mailometer Type II perfs |
| Private perf | TD 49 | Mailometer Type III perfs |
| Private perf | TD 50 | Schermack Type I - 7 hole perf 11 vert |
List of all blank stamps by Scott #
TD 9 1878-79 Blank unwatermarked perf 12
TD 10 1907 Blank Wmk. 191 perf 12 brownish gum
TD 30 1910? Blank tan Rouletted 13.25 vert Shiny Gum
TD 44 1910-27 Blank Smooth Gum Imperf
TD 45 1910-27 Blank Perf 10.5 vert
TD 46 1910-27 Blank Schermack Type III perfs
TD 47 1910-27 Blank Mailometer Type I perfs
TD 48 1910-27 Blank Mailometer Type II perfs
TD 49 1910-27 Blank Mailometer Type III perfs
TD 50 1910-27 Blank Schermack Type I - 7 hole perf 11 vert
TD 72 1920s-1930s Schermack Dummy Coil Perf 10.5 Horiz
TD 75 1927-30 Blank ribbed gum Perf 10 Vert
TD 76 1927-30 Blank with Horizontal lines 13.5mm apart
TD 79 1930s Zeigle white blank coils, for Stampmaster machines (1930s).
TD 80 1930s Zeigle Blue colored blank coils
TD 81 1930s Zeigle Green colored blank coils
TD 82 1930s Zeigle Yellow colored blank coils
TD 83 1936 Blank Gum Breaker ridges 5.5mm apart Perf 11x10.5
TD 84 1936 Blank Gum Breaker ridges 11mm apart Perf 10
TD 85 1930s Blank with Gum Breaker ridges Stamp size 25x40mmm Brownish Gum Perf 11.25x10.5mm
TD 86 1943 Blank pane of 50 produced by American Banknote company Marginal markings Perf 12
TD 106 1960-70 Blank overall tagging Dull Gum Perf 9.75 Printed on inked press. Press wiped, but some stamps have wipe marks and joint lines
TD 113 1964 Blank green tagging added by Pitney Bowes Perf 11
TD 114 1964 Blank orange tagging added by Pitney Bowes Perf 11
TD 122 990s Blank type of 1878-79 Untagged perf 9.75 vert Shiny and dum gum