The unique 2c Hawaiian Missionary cover
Sold by Siegel in 2013 for a record $2,242,500
1918 24-cent Inverted Jenny
Sold November 15, 2018 for $1,593,000
World-record price for an Inverted Jenny
World-Record Price for a 20th Century stamp
Canada, 1851, 12p Black on Laid Paper
(Scott 3; SG 4)
Sold by Siegel International March 2018 for $159,300
A copy of the Emancipation Proclamation
Signed by Abraham Lincoln
Sold for $2,085,000