In the 1980s my dad gave me some of my grandads stuff, the oldest is a 1934 evening chronicle (I think it's the chronicle, I haven't looked at it for quite a few years) of the cup win and homecoming.
My fave was a penant/triangle flag for the 56 cup final though.
I got passed down lots of stuff (grandad died in 84 and a lot of his and my dad's stuff were in a tatty box upstairs in dad's greengrocers, so I nicked/saved a lot more of that in about 92 bringing it home! As well as what I was given in 86), Lots of 50s and 60s progs, cup final stuff, some champions 68 pennants, little pot city man (which is in the got not got city book), you're making me nostalgic for it all now!
I remember holding the 56 flag in awe like it was from a lost world - this was 1986 so it was only like looking back at 1991 now!
Stuff that was my own collection rather than given to me - im proudest of the large collection of handwritten letters and signed stuff from city players from 87 to mid 90s.
and stuff from the 81 final was my own, though I was 5 and didn't go!