It may be that Joseph Jakob acquired a gesteck or parts kit from H.A. Lindner and finished it, but I'd be skeptical. He may have contributed some effort on the embellishment seeing the engraving isn't the typical New English Arabesque(Neuenglische Arabesken ) engraving or whatever the correct term might be. The pattern welded tubes were sourced from Liege(not Suhl) and a best guess is that August Blatt of Albrechts was contracted to perform most of the tube set tasks. With the 621 Anson & Deeley patent number I'm sure Ken has a best production date. "A.B." is also seen on examples in the 35xx and 36xx range.

Kind Regards,

Raimey
rse