I have no confidence in my parsing of Finnish cursive, but I am reading “leima on attitu” from that second line, which google translates as “the stamp is stamped”. The first line looks like “Mina fa Lucky” to me, or maybe “Mimi fa Lucky”, but neither gets anything sensical from google translate…
…and I typoed and “atittu” is what translates as stamp. Anyway, if you don’t get an answer from someone sooner, I’ll ask a friend who lives in Finland if she can read it. :)