thanks bat - very interesting - particularly like the sound of Orgeat and Ratafia - big fan of orange and almond flavours......... probably at about the same time an entire family could get drunk on Gin (Hollands) for one shilling (currently that would be five pence).
Peter - correction noted thanks.
just before we put this one to bed, there is occasionally some doubt as to the exact purpose of pieces which are related closely or vaguely to this general bowl shaped appearance - and I'm thinking here of tea mixing bowls where - as far as I know - the sides are straight and the overall depth is noticeably greater than a sugar. Unfortunately, some pieces fall mid-way in size and appearance - so if you think I've captioned the pix wrongly do shout - apart from those examples that are obvious from their shape, I'm not remotely experienced at determining those of a different design or shape.
I've attached pix showing firstly bowls I'm fairly sure are footed sugars, then some about which I'm unsure as to purpose - they might be footed sugars or possibly mixing bowls - finally there are tallish straight sided pieces, with feet, which I believe are mixing bowls.
In amongst these is what appears to be a water bowl - it has the return base (ogee shape) and the cutting looks to be typical of late C18 - it also has a six point radial star cut to the base - apart from this one piece, I think I've excluded any pieces that I know to be definitely finger bowls.
As for dating sugar bowls, I've had a squint through some of the books, and glass examples of the design discussed here, seem to appear around c. 1800, but there were silver sugar sifters that were used well before then, and as Peter has said the lump sugar was crushed below stairs.