US Tagged Stamps
ID
10374
Thumbnail
Cat Number
2180
Variety
v1f1
Description
Chester Carlson, Inventor
Series
Great Americans
Denomination
21ยข
Color
Blue-Violet
Separation Method
PF
Extent Perf Die Cut
4
HPerf
11.00
VPerf
11.00
Tagging
Large Block
Tagging Color
Paper Type
DF
Adhesive
WA
Gum Type
D
Format
S
EFO
F
Watermark
unw.
Specialfeatures
paper light gray with trace luminescent threads under LW; block tag shifted up
Printing Type
engraved
Stamp Date
----
Printer Engraver
Issue Year
1988
Image1
Issue Date
10/21/1988
Quantity Issued
Visible
Yes