A Turntable History Question

In late 1981, or January of 1982, I took a couple of my ward sisters out to the theatre (it was a Brian Rix farce at the Apollo). Returning to Harrow, I dropped off one of them and was invited in, where I saw her husband's turntable. It was suspended at each corner by many rubber bands, and years later I assumed it was an SME that I had seen. Now I know that SME were not making turntables at that time, I wonder what it was?