death_date death_place birth_place nationality birth_date image article_title name occupation
1970 porvoo , finland hannäs , sweden swedish 1882 file : signe-hammarsten-jansson . jpg signe hammarsten-jansson
 signe hammarsten-jansson graphic artist
signe hammarsten-jansson

signe `` ham '' hammarsten-jansson -lrb- née .
hammarsten , 1 june 1882 hannäs , sweden - 6 june 1970 porvoo -rrb- was a swedish graphic artist who designed , among other things , around 220 finnish postage stamps during the course of three decades .
she was the mother of tove jansson , creator of the highly successful `` moomin '' characters .
