The butterfly wallpaper was designed by Ritva Kronlund for Pihlgren & Ritola. The cherry blossom wallpaper that's one of my favourites and the snowflake- one I had a few flats ago are also designed by Kronlund. I scout wallpapers all across the internet but always end up getting all of them (well, almost) from Tapettitalo (that carry all the old P&R wallpapers) in the end!
Perhonen has been in production for decades. It is labelled as a 50's wallpaper but I am not sure weather it was designed so far back or in the 70's, as most of her famous ones are from then. There is also a rather intensive black version available of the butterflies.
