Wow, that is old. My 4 year old grandson informed me I was very, very old, and then said "How did that happen?"
The answer to that, as Larkin had it, "brings the priest and the doctor.."
It wasn't a telgram, really, a card with a photo of the Queen sent by Special delivery but my parents were very chuffed. It was a bit strange asking Directory Enquiries for the phone number, but of course they are quite used to it.