#RB611914 6c Proprietary Stamp - offset, watermark, perf 10, black
$49.00- $110.00 #RB401914 33/4c Proprietary Stamp - offset, watermark, perf 10, black
$27.50- $90.00 #RB411914 4c Proprietary Stamp - offset, watermark, perf 10, black
$43.00- $120.00 #RB591914 43/8c Proprietary Stamp - offset, watermark, perf 10, black
$13.00- $28.50 #RB631914 10c Proprietary Stamp - offset, watermark, perf 10, black
$12.00- $25.00 #RB431914 5c Proprietary Stamp - offset, watermark, perf 10, black
$95.00- $140.00 #RB321914 1/8c Proprietary Stamp - offset, watermark, perf 10, black
$0.50- $1.00 #RC21934 3c Future Delivery Stamp - carmine rose
$25.00- $65.00 #RB641914 20c Proprietary Stamp - offset, watermark, perf 10, black
$23.50- $52.00 #RB531914 2c Proprietary Stamp - offset, watermark, perf 10, black
$6.75- $11.00 #RB371914 1 7/8c Proprietary Stamp - offset, watermark, perf 10, black
$25.00- $95.00 #RB381914 21/2c Proprietary Stamp - offset, watermark, perf 10, black
$4.50- $24.00 #RB601914 5c Proprietary Stamp - offset, watermark, perf 10, black
$3.75- $8.50 #RB621914 8c Proprietary Stamp - offset, watermark, perf 10, black
$14.50- $42.00 #RC201918-34 $500 Future Delivery Stamp - type I, blue
$9.50- $31.00 #RB571914 33/4c Proprietary Stamp - offset, watermark, perf 10, black
$10.00- $28.50 #R1931902 $10 US Internal Revenue Stamp - ornamental numerals, green
$85.00- $160.00 #RD21918-22 2c Stock Transfer Stamp, carmine rose, horizontal overprint, perf 11
$0.50- $1.00 #RJA44a1919-64 2c violet, imperf
$1.50 #RB341914 3/8c Proprietary Stamp - offset, watermark, perf 10, black
$0.65- $1.00