Thematics: Medicine & Health: 1909, "2me CONFERENCE INTERNAT.SCIEN CONTRE LA LEP
Thematics: Medicine & Health
1909, "2me CONFERENCE INTERNAT.SCIEN CONTRE LA LEPRE / BERGEN / 16-19 AOUT 09 / NORVEGE" clear strike of special event c.d.s. on express card (corner crease at lower right) to Dresden/Germany, bearing Norway 30ö. grey oblit. by violet field post c.d.s. (which was temporarily...