Stamps of Netherlands, 1928 base year
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1928, Aug 20 Long term issue wmk. circles p. 12
| - | 40c | red | Luchtrecht | |||
| - | 75c | grn | Luchtrecht |
postage due
1928 p. 12.5
| - | 7c | ltbl | Portzegel | — | — | |
| - | 12c | ltbl | Portzegel | — | — |
semipostal
1928, Mar 27 Olympics 1928 issue (no perf info) (8 stamps)
| X | 1 1/2+1c | dkgrn | rower | |||
| X | 2+1c | lil | fencer | |||
| X | 3+1c | grn | footballer | |||
| X | 5+1c | ltbl | Yachtsman | |||
| X | 7 1/2 | org | shot put | |||
| X | 10+2c | carred | runner | |||
| X | 15+2c | bl | Rider | |||
| X | 30+3c | dkbrn | boxer |
1928, Dec 10 child welfare 1928 issue
| - | 1 1/2+1c | lil | Minckelers | |||
| - | 5+3c | grn | Boerhaave H | |||
| - | 7 1/2c+2 1/2c | red | H.A. Lorentz | |||
| - | 12 1/2c+3 1/2c | ultra | Huygens Chr |
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