The first ever Moomin-themed ADs 1-3/10, and similar items

During the 1950's Tove Jansson's cartoon character Moomin (Moomintroll) was used to advertise Yhdyspankki (Union Bank of Finland). Tove illustrated the ADs by herself. As accompaniment there were always a short funny story featuring Moomin characters, including Hemulen, to promote saving money among children, associating the Moomin characters with the positive message of saving. These advertisements were published between 1956-1958 in small circulation children's publications. Ten different ADs were made and these three are one of those. Extremely rare and hard to find Moomin rarities. Size 20,5 x 27 cm, in good condition. The story of these rare ADs can be found from the recently published 500-pages book "Treasures from Moomin Valley" by Anders Landen. Moomin, Muumi, Mumin, Mummi, Mumi, Mumini, Muminki, Moomin art, vintage, Tove Jansson, rare, rarities