70 years after the death of the writer or artist. BUT if you have (for example) a reproduction of a Stukeley drawing in a modern book - then the photographer of that repro., plus the author and publisher of that book will have copyright even though Stukeley is long dead. You would only be OK if you owned an original. Museums own copyright of the originals in their collection and charge high license fees. Consult " Writers and Artists Yearbook" in your local library. Best bet is DON't, but lots do and TMA sometimes sails very close to the wind. I regret it, because its a beatuiful website, but Megalithic Poems is very very naughty. Up to you and the Eds really.