fantastic roof tile
Mexican Talavera tiles
There is a special quality to imperfect hand made tile. It cannot be replicated by machines. The imperfections are what makes it. This is one of those “qualities without a name”… (see Christopher Alexander’s “a Pattern Language”)
unlicensed architect, ex-skateboarder, planning commissioner, shoe designer, all around dork
themovement.com 
I agree, there’s something truly unique and beautiful about handmade tiles with their subtle imperfections.