I'm very belatedly catching up on this thread; what interesting items you have.
I have two things I particularly treasure. The first is my great-grandfather's garden spade! It was probably made in the 1860s or 70s when he was newly married and doubtless followed him to his various homes till he died in 1941 - a few years before I was born. I suppose it went to his youngest son because he was farming the farm great-grandfather had managed from 1911 then bought in 1916. From there my mum inherited it and so to me. It's too heavy for me these days - I plan to give it to my eldest son in Yorkshire since he's become a gardener.
The other item is rather older: the leather bound "exercise" book of my GGG grandfather, dated 1779. He was privately tutored by a JQ (John Quant, we think) who wrote out, long-hand of course, a huge number of arithmetical problems for young Simeon, aged 13-15, to solve eg:
How many quarters of corn may be bought for 160 guineas at 4s a bushel? or
What is the rebate of a debt of £150 due 4 months hence at 4 per cent per annum? or
If a man spends 7s 6d per day, how long will 50 guineas serve him?
Then there are imaginary quotations for carpentry work or tiling a house to be calculated, and much more!
I hope at least one of my 8 grandchildren might be interested in hanging on to this one day..
Margaret