#RB20p1898 1/8c Proprietary Stamp - hyphen hole, yellow green
$0.50- $0.85 #RB21p1898 1/4c Proprietary Stamp - hyphen hole, brown
$0.50- $0.75 #RB23p1898 5/8c Proprietary Stamp - hyphen hole, deep ultra
$0.50- $0.85 #RB25p1898 1 1/4c Proprietary Stamp - hyphen hole, violet,
$0.55- $0.85 #RB221898 3/8c Proprietary Stamp - Rouletted 5 1/2, deep orange
$0.55- $150.00 #RB211898 1/4c Proprietary Stamp - Rouletted 5 1/2, brown
$0.50- $0.75 #RB241898 1c Proprietary Stamp - Rouletted 5 1/2, dark green
$0.65- $3.50 #RB28p1898 2 1/2c Proprietary Stamp - hyphen hole, lake
$0.65- $10.00 #RB201898 1/8c Proprietary Stamp - Rouletted 5 1/2, yellow green
$0.50- $95.00 #RB271898 2c Proprietary Stamp - Rouletted 5 1/2, violet brown,
$0.65- $2.25 #RB251898 1 1/4c Proprietary Stamp - Rouletted 5 1/2, violet
$0.50- $0.85 #RB27p1898 2c Proprietary Stamp - hyphen hole, violet brown
$1.25- $12.50 #RB231898 5/8c Proprietary Stamp - Rouletted 5 1/2, deep ultra
$0.50- $0.75 #RB281898 2 1/2c Proprietary Stamp - Rouletted 5 1/2, lake
$0.65- $7.50 #RB261898 1 7/8c Proprietary Stamp - Rouletted 5 1/2, dull blue
$2.25- $21.00 #RB26p1898 1 7/8c Proprietary Stamp - hyphen hole, dull blue
$11.00- $49.00 #R131862-71 2c US Internal Revenue Stamp - proprietary, old paper, blue
$0.65- $1.00 #R1641898 2c US Internal Revenue Stamp -Battleship, carmine rose
$0.65- $1.00 #RB451914 1/4c Proprietary Stamp - offset, watermark, perf 10, black
$0.50- $0.75 #RC181918-34 $60 Future Delivery Stamp - type I, brown
$1.50- $115.00