Ok, thanks Frank - My "Find text" function worked this time and I found the Emile you referred to. But I still don't see any info to suggest it's the E. Dreyfous of "Dinklepips" queried piece.
I can, however, make sense of it possibly being the "Edouard Henry Dreyfous" mentioned in Della's link, as it is said that he was a London retailer. And "Fait a Paris", with his "E. Drefous" signature could fit quite well.