Lars Nyman seems to be something of an unknown, a quick search on Google does not give many interesting results. But PES is found in all cases the info that he was an artist and graphic designer and had a screen printing company in Hammarby in Stockholm until 1982. Just bird pressures seem to have come into existence in the late 60's and early 70's. And sweet they are!
Vintage Retro Mid Century Poole Pottery Robert Jefferson Bird Tiles Plaques 60s