TY  - BOOK
AU  - National Philatelic Museum
TI  - The sixteenth American Philatelic Congress: National Philatelic Museum : exhibition, October 15th to November 15th, seminar, October 23, 24, 25, 26, convention October 27, 28, 29, 1950
T2  - National Philatelic Museum
CY  - Philadelphia
PB  - The Museum, [1950]
KW  - Stamp collecting
KW  - United States
KW  - Philatelic Congress
KW  - Stamp collectors
ER  -