I did consider the lidded sweetmeat/urn/lidded jar - but the brain said they were earlier than the possible date here, and they were taller usually, and from what I've seen they are more ornately delicate and mostly with much cutting.
The world is awash with sweetmeats of the classical style, but can anyone point us in the direction of a qualified sweetmeat of this pattern and size? Do we know when they changed from those tall delicately cut pieces to this squat style?
Being thick I frequently need to quote from those better informed, and coming back to Harold Newman, when speaking of sweetmeats he says of the contents …….
""...………. various kinds of sweetmeats, probably dry sweetmeats, such as chocolates, nuts, cachous, candied or dry fruits, etc. (as distinguished from 'wet sweetmeats', such as trifle etc., eaten with a spoon and more likely served in jelly glasses ………...…………""
no mention of chicken hearts and livers

But back to the shape etc., if this were Georgian then IMHO it would be of the typical C18/early C19 appearance. In Barbara Morris' book 'Victorian Table Glass And Ornaments', the lady shows a c. mid C19 honey jar with cover similar in basic shape to this one, though admittedly size isn't provided - mushroom finial to the lid with short stem and thick flat foot.