'Gleaning' coal, Tonypandy tip, Rhondda Fach 1968.
These gentlemen were a lively pair. I had walked up the mountainside carrying a heavy metal large format 5X4 camera, together with its heavier and larger tripod.
I stopped in front of them, put the gear down and asked if I could take a picture of them.
They looked at each other and one of them said 'well mister you can take our snap, but you mustn't show the NCB mind. Were borrowing a bit of coal like, see'.
Promising not to tell anyone, I set up the camera and took this picture.
The fun started when one of these gentlemen asked why I had a black cloth over my head when I was taking the picture.
I offered to show them the view through the back of the camera. One at a time they looked at the camera screen with the focussing cloth draped over the back of their heads.
The first gent shot backwards from under the focussing cloth complaining that his 'butty' was upside down.
I gave them both an explanation of why the image was inverted, because light travelled in straight lines.
They got the idea of this and took turns moving the camera around to see the different views.