Classic Caterpillar bulldozers stripping topsoil at Sibbertoft. 

On my way to Hillhead Quarry Show in England, I had some time to call by this classic earthmoving equipment working day in Sibbertoft. There was other equipment at work there but here are some of the Cat tractors / dozers. No scrapers or pulled scraper boxes / pans that day, unfortunately.
I am not an expert on this kit so while I can see model numbers on some, please feel free to comment or add any info or experience you have on these machines.