Some more photos from my buying sprees on ePay. These appear to be of an excursion on the US Gypsum narrow gauge railroad at Plaster City, CA. The dates on the photos are February 1957 which is when they were developed so I don't know exactly when the trip took place. Looks like this might have taken place shortly after the #1303 & #1304 diesels were delivered.
Richard Wilkens