it seems to me that a lot of sellers are not aware of the difference between the two, does any one here have issues with it? ...i see some fading on obp that's gives a blue hue (barely) and therefore some may see as bop but there is a definitive difference to me even faded or yellowed so as in some single drums the deals await those with the sharp eye....lol!
62 cat. shows oyster black pearl therefore obp and also oyster blue pearl but i switch bop for blue sorry for not clarifying by 1980 cat. no more oyster black pear only blue still called oyster blue pearl in 19 80 cat.