Handstamped in Black Printer's Ink
ISSUE
REFERENCE #
REMARKS
1c Franklin  OBT1-BK-226  1 Recorded, on piece
2c Washington PSE OBT1-BK-U122 1 Recorded 
Handstamped in Black Blue Ink
ISSUE
REFERENCE #
REMARKS
1c Franklin  OBT1-BL-226 a
a OBT1-BL-226-B Inverted
a OBT1-BL-226-C Vertical reading up
a OBT1-BL-226-D Vertical reading down
2c Washington OBT1-BL-227-C Vertical reading up
3c Jackson OBT1-BL-228 a
5c Lincoln OBT1-BL-230 a
6c Garfield OBT1-BL-231 a
a OBT1-BL-231-C Vertical reading up
10c Webster OBT1-BL-233 a
13c Harrison OBT1-BL-234-C Vertical reading up
15c Clay OBT1-BL-235 o
50c Jefferson OBT1-BL-236 o
2c Washington OBT1-Bl-240 a
a OBT1-Bl-240-B Inverted
a OBT1-Bl-240-C Vertical reading up
a OBT1-Bl-240-D Vertical reading down
Handstamped in Red Printer's Ink
ISSUE
REFERENCE #
REMARKS
1c Franklin OBT1-R-226 a
a OBT1-R-226-B Inverted
a OBT1-R-226-C  Vertical reading up


Handstamped in Violet Stamp Pad Ink
ISSUE
REFERENCE #
REMARKS
2c Washington OBT2-V-240 1 Recorded on entire cover
LARGE O.B.
S-1
S-2
S-3
S-4
S-5
S-6
S-7
S-8
S-9
S-10
S-11
S-12
SMALL O.B.
L-1
L-2
L-3
L-4
L-5
L-6