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Main Exhibits
Essays, Fancy Cancels, Postal History, etc.
3¢ Plate Characteristics
Telling them Apart
3¢ Platers Markings
Characteristic Notation
3¢ Orange Browns
Plates 1E, 1I, 2E, 5E, & "0"
Experimental OB's
from Plate 1L
Railroad & Agent Markings
On & Off Cover
Route Agent & Name-of-Boat Markings
On & Off Cover
Institution Markings
Academies, Colleges, etc.
Mis-Struck Markings
Arrival, Entry, Packet, Transit
"Mystery" Markings
One Hypothesis


Studies In Progress
The New York Domestic Mail 52-3 Cancel Revisited
"APL" for "APR" - New Discoveries
Resources
The 3¢ Study Group
Meets Bi-Annually
Essential References
& Philatelic Exchanges
Useful Links

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P l a t e  1 L  E x p e r i m e n t a l  O r a n g e  B r o w n s

from the Collections of Dr. Charles J. Di Como,
USPCS Secretary, Webmaster, & on the Board of Directors


Click each image to view large, detailed panels

A sampling of plated examples of Plate 1L Experimental Orange Brown shades produced during the transition period of printing with the true Orange Brown pigments to the Brownish Carmine pigments. These stamps can be identified by their early impressions, as well as their distinctive waxy-appearing color.

A fantastic pair of covers. These XF singles were from the same sheet of Plate 1L Experimental Orange Brown's used quite late in November of 1852 (confirmed by internal manuscript-dated header).

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Dr. Charles J. DiComo

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