I have two more bowls I can't identify.
The first one looked at first glance like an Arcoroc piece, but there's no Arcoroc name anywhere and it has the most wonderful ring. It's quite thin moulded (slumped?) glass, with a hint of the moulded pattern discernible to the touch on the inside, and it's 20 cms (8 inches) across the top.
Any suggestions very welcome!
Roz