Stamps of Netherlands, 4 1/2g denom
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airmail
1929, Jul 16 1929 air issue unwmk p. 11.5
| - | 4 1/2g | car | Mercury head over Netherlands landscape |
marine insurance
1921, Feb 2
| - | 4 1/2g | dkgray |
1 to 2 of 2
| - | 4 1/2g | car | Mercury head over Netherlands landscape |
| - | 4 1/2g | dkgray |