Yes
I was thinking Schneider
I've their seen pieces just signed in acid France quite like this -(but rarely)
-actually Schneider did do cold cut tops on table ware--but I've never seen a cold cut topped schneider vase.
They other possibility is Mulaty they can be amazingly like Schnieder and were occasionally lazy enough to leave a top like this -but I've never knowingly seen an unsigned piece
cheers