Ernst Steinwald & Co. - Dripping tango (in metal foot)

I bought this red vase a few years back from Ebay. It caught my eye because of the tango application technique: black pulls that resembled dripping paint. The red is cased before the black was applied, so... the colors have dimension.
I found this yellow (over 12" tall). Both of these examples reminded me of ESC but were not signed. The bases are German steel made simply and without decoration. At first sight, I thought maybe this metal was a repair but now after seeing many of them I realized they were produced that way and probably involved two companies working together. Hope you enjoy, and please post links if you have other decors with these metal bases.