Inherited last year.
So very little knowledge!
Due to it's age it will have various lumps and bumps.
One in fair condition with small dint and small split.
The other has no bottom in it.
The measurements are
approx:- 133/4 inches overall width, Rim measurement 12 1/4 inches. Height 10 3/4 inches.
On testing the metal shows the colour of Bronze.
Definitely not an individual colour of either copper or brass.
They both weigh very heavy, the one with no bottom weighs 5 KG and the one complete in shape should weigh a bit more.
It should be quite easy to make a circle of ply and cut in half to insert if necessary to create a base for the bottomless pot,or a plastic water plant tray might fit. Using my experience of garden/d.i.y, a good strong heavy duty plastic 10 kg bag used for sand/ballast would be easy to fit in the bottom and then fill with soil or compost would also work.
My D.I.Y experience is 57 years and gardening experience is 68 years.