Here's one for Alan.
These gate end boxes or panels (basic equipment switch) and the myriad of versions of them are something else that must still be 'down there' in there thousands.
This type switch was ok if well maintained but that 'wishbone' closing and opening affair on the door could be a real nightmare. I've seen me have to take a mel to these to get the door open. Not the done thing considering these are flameproof (explosion proof) enclosures with components manufactured to thousands of an inch tolerance.