Just a bit of fun!
Had to laugh (oh that bad hair and baby face)..just found this photo of me on a Post Office Telephones (yes there's a clue-before it became BT) Training course at Bletchley Park (no I wasn't decoding the enigma machine, not quite that old!...but did see it)
It was on what was known as a Strowger Telephone Exchange Course...the days when phone calls were routed using relays and electromagnets and not Transistors and chips!
T shirt long gone but do you remember the year and where I may have bought it?