US 1901-1940- Mint Stamps
Scott# 766a “FORT DEARBORN” MNH BLOCK (4) W/HORIZONTAL GUTTER, NGAI
US 1901-1940- Mint Stamps
US 1901-1940- Mint Stamps
Scott# 766a “FORT DEARBORN” VERTICAL PAIR WITH HORIZ. GUTTER, MNH
US 1901-1940- Mint Stamps
Scott# 767a “FEDERAL BUILDING” SINGLE, NGAI, MNH, NICELY CENTERED
US 1901-1940- Mint Stamps
Scott# 767a FEDERAL BUILDING, HOR. PAIR W/VERT. GUTTER, NGAI, MNH
US 1901-1940- Mint Stamps
Scott# 767a FEDERAL BUILDING, MINT BLOCK (4) W/HORIZ GUTTER, NGAI
US 1901-1940- Mint Stamps
Scott# 767a FEDERAL BUILDING, MNH BLOCK (4) WITH VERTICAL GUTTER
US 1901-1940- Mint Stamps
US 1901-1940- Mint Stamps
Scott# 767a FEDERAL BUILDING, VERT. PAIR W/HORIZ. GUTTER, NGAI, MNH
US 1901-1940- Mint Stamps
Scott# 768a “BYRD ANTARCTIC EXPEDITION” CROSS GUTTER BLOCK (4) MPVLH, NGAI
US 1901-1940- Mint Stamps
Scott# 768a “BYRD ANTARCTIC EXPEDITION” CROSS GUTTER BLOCK (8) MPLH, NGAI
US 1901-1940- Mint Stamps
Scott# 768a “BYRD ANTARCTIC EXPEDITION” GUTTER BLOCK, MNH, NGAI