| Oil Power. Here is a duplicate 35mm color slide of (L to R) Pennsylvania Railroad engine #5773 and another unit whose road number is not recorded. Both are BP-20's built by the Baldwin Locomotive Works and rated at 2,000 horsepower each. #5773 was constructed in August of 1948 and retired in May of 1965 after just 17 years of revenue service. The photographer's name, the exact date, and the location are not recorded. |