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 in charge to provide postal services for conference members). At 1909 Leprosy Conference, the norwegian doctor´s Gerhard Hansen's merits in identifying leprosy bacterium back in 1873 were finally fully acknowledged. Very rare, less than twelve entires are stated to be known.