hand doorknockers

i first saw hand shaped door knockers like these in tangier many years ago.  there they were said to represent the hand of fatima.  on our recent trip to mexico i encountered them again.  apparently they were popular in victorian times.  i got so spellbound by them that i wanted to have one, even though  i don't have a door! (I mean- we rent) i found two on ebay that had a similar weathered patina.  will post photos.