#RS220a1862 1c Proprietary Medicine Stamp - black
$6.50- $8.25 #RS106a1862 2c Proprietary Medicine Stamp - Helmbold's, blue, old paper
$5.50- $8.25 #RS280p1898-1900 1/4c Proprietary Medicine Stamp - carmine
$4.50- $22.50 #RS150d1862 1c Proprietary Medicine Stamp - I.S. Johnson & Co, vermillion, watermark 191R
Call for Availability #RS87d1862 1c Proprietary Medicine Stamp - green, part perf, watermark 191R
$10.50 #RS170b1862 1c Proprietary Medicine Stamp - Dr. J.H. McLean, black, silk paper
$7.25 #RS283p1898-1900 2 1/2c Proprietary Medicine Stamp - brown orange
$27.50 #RS278p1898-1900 2 1/2c Proprietary Medicine Stamp - carmine
$13.00 #RS259d1862 1c Proprietary Medicine Stamp - blk,dl wmk, Weeks&Potter
$16.50- $25.00 #RS284p1898-1900 1 1/4c Proprietary Medicine Stamp - black
$2.00 #RO172b1864 1c Proprietary Match Stamp - Star Match, black, silk paper
$3.50 #RS305p1898-1900 3 1/8c Proprietary Medicine Stamp - brown, Hyphen Hole
$4.00- $6.50 #RS220b1862 1c Proprietary Medicine Stamp - black, silk paper
$8.75 #RS305r1898-1900 3 1/8c Proprietary Medicine Stamp - brown
$1.75- $4.00 #RO172d1864 1c Proprietary Match Stamp - Star Match, black, double watermark
$4.00- $6.00 #RS291p1898-1900 5/8c Proprietary Medicine Stamp - carmine, Hyphen Hole
$2.50- $2.75