Can anyone remember a company from Birtley called Cawthorn and Sinclair? Cave wood took them over and they used to do quite a lot of CAT work from Birtley (now the Komatsu factory) I am looking for some pics of the can anyone help me please, cheers, Les 
Hi Les welcome to TruckNet .
If you look on page 3 of this forum you will find a couple of pages and photo’s of Cawthorn and Sinclare.
By the way Les, did you ever drive for them in the 1970s 
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Regards Steve.