Why are Spanish cobs, aka "pirate coins" or "pieces of 8" such odd shapes?!

[@SteveLionhardt]

Amazing. What a process it was! What a lost art!!

[@sineriafrankenstein7316]

Cool!!!!❤

[@chryoung-db2iw]

I prefer the real thing I own a phillp the 4 th one from a shipwreck that suck of the Dorset coast in England known has the pediomant wreck