| 000 | 00725nam a2200145 a 4500 | ||
|---|---|---|---|
| 008 | 940722s1950 pauac 000 0 eng d | ||
| 100 | _aNational Philatelic Museum | ||
| 245 | 1 | 0 |
_a1950 International Airpost Exhibition : _bSeptember 16th-October 11th 1950 at National Philatelic Museum under the auspices of American Air Mail Society and National Philatelic Museum in conjunction with 27th annual convention American Air Mail Society, September 22 thru 24, 1950. |
| 260 |
_aPhiladelphia : _bNational Philatelic Museum, _c[1950] |
||
| 490 | 0 |
_aNational Philatelic Museum ; _vv. 2, no. 7 |
|
| 500 | _aSpine title: Airpost 1950 exhibition. | ||
| 650 | 0 | _aAir mail stamps | |
| 650 | 0 | _aPostage stamps | |
| 999 |
_c2120 _d2120 |
||