Why not take the chucks off and walk in to your suppliers or
Take a note of the details 'around' each chuck
or take an impression with a bit of childs' Modelling Clay.
Or- whoops- buy a cheap Foreign 4 way chuck key and find the ones you want.
As the for the last ones- they are cheep cheep but you can go into a supplier-- and get a better one-- at a better price.
And how do I know? Shame, disgrace and ignominy-
