thanks Rose - apologies for omitting the height - it's about 5" to the lid, and then another 3/4" for the handle. I probably wouldn't have known its use with any certainty without seeing the pictures of others I mentioned - I did mistakenly first think it was something from a woman's dressing table kit. I also forgot to say that I don't think it's from continental Europe, in view of the style of the 'seven' - so most likely British, but there's an outside chance I suppose that it might have originated from your side. It's an absolute corker for catching the light and sparkling, so I'll keep it despite the nibbles. I have several C19 biscuit barrels, although they are simply round in shape as you might imagine more. Perhaps this is for oval biscuits

- although don't think you'd get many of whatever shape in there, but then again it was likely to have been a high table piece - a bit like cut glass jam pots and proper butter dishes. I did briefly think the nos. might have indicated an edition quantity, but probably unlikely, and I'm sure it's a factory pattern No. from some producer.