Mine was taken in April, I think, 1964.
Arithmetic, English, comprehension test, essay to write as I recall.
It was on a specific day, we knew it was the 11+.
My parents received a letter with the result. I went to the phone box to ‘phone a friend’ with it, her instructions.
I had passed, she had to go for an interview, so not a pass but not ‘fail’. She seemed thrilled at that, I didn’t say anything, but I would have been disappointed not to pass outright.
We still have the 11+ in our area, my DD didn’t pass, I admit to being disappointed at that. Our DS did pass, as have both his children subsequently.
So different, now they are all tutored to pass about a year in advance of the exam.
Rather pleased that neither of the GC were tutored, and both achieved good passes.
Highly competitive nowadays, I wouldn’t pass now as the ‘reasoning’ tests would be beyond me!