Here is one of the numbers:

Vickers PVB20-RS-20 CC-11

(Got 8 or 10)

http://joelawing.pairserver.com/images/main/vicpump02_9.jpg

 

http://joelawing.pairserver.com/images/main/vicpump02_28.jpg

 

http://joelawing.pairserver.com/images/main/ParkerPump02_7.jpg

http://joelawing.pairserver.com/images/main/hydmotor03.jpg___2.jpg

 

hydmotor03.jpg___7.jpg - 19.93 kB