Check the listing for details. Bluebook of Model Railroad Practice Model Railroader Reference Sheets Vintage. Condition: Good. Listed at 8.00 USD. I don’t know the age of these they look to be the 40s possibly the 50s but I believe they came out of model railroader and they are slip sheets called bluebook of model Railroad practice basic information of permanent reference value. There is locomotive and tender details and steam locomotive details and then there is one from Fairbanks-Morse passenger diesel locomotive from 1949 and it’s a double sheet. Email with questions or for more pictures. The San Luis Obispo Railroad Museum, SLORRM, located in San Luis Obispo California is housed in the original 1894 Southern Pacific Railroad Freighthouse. We are currently raising money for new projects and appreciate your looking and bidding. If you are in the California Central Coast area, please stop by the museum or visit on-line.