Ruston Bucyrus Crawler Crane

This is a model 10RB
Year????
The 10 was the smallest in the last range of models of this machine, others being the 22, 30 and 54.
These machines were commonplace in the mid 20th century and were operated in many formats, Crane, Clamshell Bucket, Dragline, Backhoe and Skimmer Bucket.
This particular machine spent it’s working life in Holland.
Powered by a Ruston 4 Cylinder diesel engine and is completely mechanical in it’s operation. Pre electronic, pre hydraulic and with a bicycle type seat for the operator some may say prehistoric!