Mountain - Sittin' On A Rainbow b/w My Friend

This UK promo release on Bell dates to 1970. It's a UK-only release and really rare. Bell was an odd label for a heavy band, as they mostly handled pop or soul. There are only approx 7 or 8 UK Mountain singles as only Mississippi Queen sold any copies, getting hold of them is difficult. This is wroth around £25 as a result.