Inherited lathes

My father died recently, and it fell to me to clear out his man-shed. In it, there are two lathes – of which he was very proud. One is Clarke Metalworker 6-speed and the other is a Clarke Metalworker Variable Speed (photos available) and the other is Unfortunately, I know nothing about lathes, so I am seeking advice. I have attached two photos of each. My question is: are they wroth anything? If so, how should I go about selling?
Many thanks in advance.