My only thought really ..........is the lid correct - it's quite loose, and probably wouldn't keep biscuits dry. Of course, I could go the the National Archives at Kew, but hope someone will know. I don't have access to any pictures, and had a vague thought that these lids were usually glass. Height is about 5.25", and first registered 1st - 6th March 1878 - and is one of those odd pieces that don't comply with the list of obvious Registry Marks (don't know why). Sorry the image of the mark is a bit iffy, it's not easy photographing something at the bottom of the barrel - the month is 'G' - the year is 'W' - day of the month is '1' and parcel No. is '8'. I believe the Registration No. is 319090. Otherwise it's just for show, and quite attractive with the part frosted sides.