Hum, the single letter on the tubes looks to be a K. Single letters are difficult to pin down but it could be for Keler, Klett, Krieghoff. Many say that too much water has passed under the bridge and we'll never know but I for one am not of that opinion. The vine engraving makes me think of Richard Keller but Hendrik should be able to put us on the straight and narrow.

Kind Regards,

Raimey
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