The Vaughn Monroe record would have been 78 rpm. One of the large ones that usually only had one song per side. You can tell the difference as the 78 rpm is as large as a dinner plate with a small center hole. The 45 rpm is vinyl, and a little more flexible plus lighter, is the size of a salad plate with a center hole the size of a half-dollar.
The old 78s broke easily but they had great sound and audiophiles try to find them or the later 33 1/3 rpms that were albums and had several songs per side.
Just to clarify, I am not an expert but am explaining from the point of someone who lived through the changes in the record industry.
It is easy for me to recall the change from strictly AM radio to FM radio. FM was new and very short distance and it tended to fade off center until you readjusted the dial. It was partially overcome by the addition of a special switch that compensated for the drifting. The device compensating for the drift was added as an "automatic built in" feature on later models with FM.
Next came the big boxy tapes and tape players that were popular in cars. One song and big! Later replaced by the cassette tape and player in the sixties and later with c.d.s. And now we have Bluetooth and Spotify, Satellite feed for radio and I think how things have changed since the days of me struggling to find a country music station back in the 1940s when my listening device was a small four vacuum tube radio, AM only, and an antenna wire stretched across the ceiling of my bedroom. During certain times of the year radio waves traveled great distances and I could listen to the Louisianna Hayrid on WSM, or WWVA from Wheeling west Virginia and even WCKY from Cincinnati 1, Ohio!