I suspect that some moulds from Portieux were used by a brazilian glass maker.
Here in Brazil we find pieces with the same colors found in Europe, some are marked with Portieux name and some are not.
But we still find carnival pieces atributed to Portieux that i aways thought it was strange.
In the next days i will writte about it and will show some photos too.
For now, thanks a lot Ivo! It was helpfull!
And i will be back very soon with the photos!