#RB711919 10c Proprietary Stamp - offset, perf 11, dark blue
$4.50- $17.00 #RB721919 20c Proprietary Stamp - offset, perf 11, dark blue
$9.00- $29.00 #RB731919 40c Proprietary Stamp - offset, perf 11, dark blue
$23.00- $95.00 #RB631914 10c Proprietary Stamp - offset, watermark, perf 10, black
$12.00- $25.00 #RB561914 31/8c Proprietary Stamp - offset, watermark, perf 10, black
$4.75- $14.00 #RB691919 5c Proprietary Stamp - offset, perf 11, dark blue
$1.50- $5.00 #RB531914 2c Proprietary Stamp - offset, watermark, perf 10, black
$6.75- $11.00 #RB471914 1/2c Proprietary Stamp - offset, watermark, perf 10, black
$4.25- $6.75 #RB351914 5/8c Proprietary Stamp - offset, watermark, perf 10, black
$2.95- $12.00 #RB681919 4c Proprietary Stamp - offset, perf 11, dark blue
$1.00- $3.75 #RB671919 3c Proprietary Stamp - offset, perf 11, dark blue
$1.00- $2.50 #RB541914 21/2c Proprietary Stamp - offset, watermark, perf 10, black
$1.50- $3.25 #RB571914 33/4c Proprietary Stamp - offset, watermark, perf 10, black
$10.00- $28.50 #RB381914 21/2c Proprietary Stamp - offset, watermark, perf 10, black
$4.50- $24.00 #RB591914 43/8c Proprietary Stamp - offset, watermark, perf 10, black
$13.00- $28.50 #RB521914 17/8c Proprietary Stamp - offset, watermark, perf 10, black
$1.15- $2.25 #RB581914 4c Proprietary Stamp - offset, watermark, perf 10, black
$0.65- $1.25 #RB641914 20c Proprietary Stamp - offset, watermark, perf 10, black
$23.50- $52.00 #RB601914 5c Proprietary Stamp - offset, watermark, perf 10, black
$3.75- $8.50 #RB511914 11/2c Proprietary Stamp - offset, watermark, perf 10, black
$3.50- $6.75