I have searched high and low for information. I've spent hours wading through my entire collection of Encyclopedia Brittanicas....erm....I mean I have Googled it, but all to no avail, unfortunately.  Ho-hum  The only reference numbers I can make out are, I think 6A240V, but not sure. Any experts out there? I can't seem to take photos, currently,  for some reason  but shall do as soon as I can. Thanks