If memory serves Mohair Sam was the flip side of this one: Scratch My Back -- Slim Harpo
I never knew that Charlie Rich had the original release of 'Mohair Sam'. I always thought it was Slim Harpo. Thanks!
There is another song that mentions a "mohair suit", that I always thought should be one of the songs they play at Trump (from NYC) rallies, maybe when he walks in with Melania, or something like that. Here's that one:
"Boy from New York City" - Manhattan Transfer