I ask for your help!
 

Dear colleagues, need your help in identifying the model of diesel engine O&K Orenstein & Koppel AG . Here's a link to the photo http://narrow.parovoz.com/newgallery...ew.php?ID=6091.
Signed: lokomotive О&К on the loading izvesti.1932 year. Ukraine.
Best regards. Shipmaster.

Welcome to the Forum Shipmaster. Hopefully someone will be able to help you.

Best wishes,

John H-T.

Try finding out from O&K themselves.
They still make eslcelator equipment.
However they do not have a website.
No doubt they will have records of past machines.
Hope this helps you.