They are unmarked without a maker's name noted.
The approximate sizes are as follows:-
Flour:- 20 cm in height and 17.5 cm in diameter
Coffee:- 16 cm in height and 12.5 cm in diameter
Tea:- 14 cm in height and 10.0 cm in diameter
They will be despatched as detailed but are also available on a collection in person basis from Bristol BS4
Thanks for looking!