I am feeling a little better today - what a yukky cold and cough :thud:
I have the answer - I did a post on the designlasi.com forum (Finnish) and here is the reply I received.
Designer Heikki Orvola, name Kukka (Flower) or Tulppaani (Tulip), the latter name might be given by fans and watchers
I have been meaning to look up this bowl for about two years (needed time off in bed to spur me on - maybe colds have a purpose after all). :24:
Thanks for your help, Rosie, Ross and Michael (picture of the signature now with the others).