[Arran]

Mike;
Those bluish-purple caps with the red lettering are old, the light blue can may be a NOS one, the brown United Chemicon one may be newer, I think there is a way to decode the marking to tell the model, and year if unknown. Not sure of the twist lock can, given that it has carbon comp resistors on the bottom tell me that it likely is either original, or an old replacement.
Regards
Arran