Elliott Concord 460 lathe

[Mayhem]

Some pics of the tool post and tool holder fit:

Piston in the unlocked position:

   

Piston in the locked position:

   

Toolholder unlocked:

   

Toolholder locked:

   

Here is the page from lathes.co.uk - mine is the S3 and that tool post is one big heavy chunk of metal