A Henkle Bomber engine in Willesden, (That went to Hendon)
A collection of pre 1938 Brittish Motorcycle catalogues on a wood factory floor in Old Ford, (they went to the Brittish Bycicle museum, i got £250 for them)
8 Doubless from Gurnsey dated 1888 in mint condition,
A Medievil Brooch in Evesham (i gave it to the alcohologists)
Countless Artilery shells,
I did find a really nice silver cigarette holder shaped like a dragons head when we stripped out the Indonesian Embassy in Grosvenor square too! (but thats secret)
And we never found any time capsules that we were supposed to give back! ;-)
A few bits of jewelry and £1000 in 50p peices in jam jars under some floorboards on a housing job!
We used to find alsorts in the Demo!