Signe Hammarsten-Jansson

Signe Hammarsten-Jansson
Born(1882-06-01)1 June 1882
Died6 July 1970(1970-07-06) (aged 88)
NationalitySwedish
Alma materStockholm University
OccupationGraphic artist
SpouseViktor Jansson
ChildrenTove Jansson
Per Olov Jansson
Lars Jansson
RelativesSophia Jansson (granddaughter)
Einar Hammarsten (brother)

Signe "Ham" Hammarsten-Jansson (née Hammarsten, 1 June 1882 – 6 July 1970) was a Swedish-Finnish 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 Moomin characters.