Lovely vintage lot! The sprung caliper at the bottom is a particular beauty.
The two chucks are early Coronet (or maybe even the original manufacturer, Hattersley and Davidson) designed for 3/4" by 16tpi lathes. Neither is very easy to use or particularly accurate, but an immense amount of excellent work has been done by folk using them.
(and some not very good work too, by owners like myself!)