Further thoughts:-
Several manufacturers were involved — the whole almost certainly assembled in Silber & Fleming's workshop.
We know that S&F sourced from many if not most of the major English glass houses, so that doesn't help. However, we know that S&F also bought in the standard 3+1 and 6+1 deluxe locking epergne blocks, launched some time, possibly many years, before November 3, 1880. These were precision-made to an industry standard fitting, so were almost certainly made by only one glassworks and supplied to all the others. I am confident that the same glassworks also made your boat-shaped flower trough.
Again, we know that all these mirror bases (and wall mirrors — see Gulliver p.196) were made by just one major mirror manufacturer and supplied to all the glass houses. Again, attribute one and we've attributed them all.
The crystal rods
should be easiest to attribute as they are of such amazing precision and quality. I think they are of too high a quality to have been made for S&F, so, what were these rods originally made for? Or, to put it another way, what was the raison d'être of the existing precision technology that S&F tapped into? Clocks, barometers, optics, weights & measures, military, or something else?
Bernard C.
