sowsear Not a silk purse source, in an old phrase Part sans silk purse potential Low-quality material, idiomatically Inferior raw material Hardly silk purse material, in an idiom A rather poor silk purse It's not a silk purse source, it's said You can't make a silk purse out of it, they say Low-quality material, in a saying Item unfit for a silk purse No silk purse source, this Unlikely source of a silk purse