1972香港错体壹圆分裂,一枚分裂变两枚,PCGS AU53,AU50,前辈藏家之香港错体币,Hong Kong, MINT ERROR, $1, 1972, split planchet post strike, presumably an air bubble is present in the planchet and when the coin was struck the air inside sheared the coin into two halves,PCGS AU53 and AU50, rare