Stamps of Netherlands, 10 Dec 1928
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semipostal
1928, Dec 10 child welfare 1928 issue wmk. circles (no perf info)
| - | 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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