15c Clay
(click your stamp below)

227 US Postage Stamps 259 US Postage Stamps 274 US Postage Stamps 284 US Postage Stamps
no triangles 1890 Stamps 1890 Stamps 1890 Stamps
NO TRIANGLES IN CORNER TRIANGLES IN CORNER TRIANGLES IN CORNER TRIANGLES IN CORNER
Indigo Indigo Indigo Olive Green
  No Watermark USPS Watermark
Watermarked
USPS Watermark
Watermarked
#227 #259 #274 #284