15″ High x 2 3/4″ Dia
~ 1″ Pipe ~
(Probably) USA made

12″ High x 2 3/4″ Dia
~ 3/4″ Pipe ~
Lunkenheimer type.

15″ High x 3″ Dia
~ 1/2″ Pipe ~
Maker unknown.

11 1/2″ High x 1 1/2″ Dia
~ 3/4″ Pipe ~
British made.