Today's been a blue day for me... as I bought 4 blue pieces - thankfully I know what two of them are (Holmegaard) - but these two I don't know:

The jug on the left, I've no clue, but the jug on the right seems to be attributed by many internet folk as from Nanny Still's Harlekiini range. I always thought Harlekiini was stemmed? Not that I'm an expert...
This fellow says otherwise, and links to others who seem to think the same...
HERE Both jugs were bought from the same person, they are very nearly the same colour, have the same quality of finish and the same bases (inverted pontil, polished), so
IF one is Riihimaen, could they both be?