They will be dated 1967 as all predecimal coins were from 1967 to 1970. Unfortunately there are an awful lot of BU 1967 brass 3d's! They are actually a very attractive coin in mint condition, so there may be an outlet for them as souvenirs, but their coin value is around 20p each if you're lucky. But you'd never get that from a dealer! Try putting it up on eBay and see if you get any bites? Thanks for that Peckris. I assume then that the fact that they are in a sealed bag doesn't change things if they go as a single item ? The sealed bag simply ensures they are all in BU condition. The thing to be aware of is that in the late 60s, many dealers offered mint sealed bags of coins dated 1965 to 1967 for investment, and as a result there have been many offered for sale over the decades. Sadly they are so common as individual coins, they would take forever to sell. Your best bet is to try and sell the whole bag. If you got (say) 5 times face value, that means someone paying around 6p per coin. That's £100 for you, and a nice little earner for the dealer knocking them out at say 20p each, but it would take so long to sell them. That's my retirement plans put back another few months then ! Thanks for the advice though !