Sorry about that, I thought the Forum automatically did so. I am a professor at Ohio University in the States and co-author of a Guide to the Engine Houses in West Cornwall with the late Kenneth Brown. I am currently working on the sequel (for east Cornwall) and would like to include a photo of Broadgate Mine before the scaffolding went up and before the stack was stuck by lightning. My own date to the 1960s, when it was just a large blob of ivy, or were taken in the last couple of years.