This 1958 train locomotive sound recording is from the Audio Fidelity LP record titled "Railroad Sounds" - The Sounds of a Vanishing Era as diesel locomotives replaced steam models. 1958 was also the year that stereo records were introduced as a playback medium to the consumer masses, and could also be played on existing mono hi-fi systems and phonographs by replacing the original mono phono cartridge with a stereo cartridge that was strapped for combining the left and right output signals of the stereo cartridge into one channel of audio feed for the mono system to amplify.
The reason the mono cartridges had to be replaced with strapped stereo cartridges is because the mono cartridge would destroy the stereo record grooves since it was not designed to play stereo records. There is always a fly in the ointment when trying to interface older technologies with new devices and inventions. Transferred to digital using stereo gear on background photo.