I have read after the "drought" due to paraquat spraying (about 1974 or so I am not sure of the actual date, as I wasn't there), any yellow buds were sold as Acapulco Gold due to the higher prices
I remember it being sold as Lumbo gold myself. The Columbian was being moved in huge quantities by the time paraquat was being used in Mexico. AG, at least where I was, was heard about more than seen. the Columbian was available, way better than average Mexican brick.