Pair of 1971 celestion g12m speakers pulsonic 102 003 cones / pre-rola / trans these are the transitional rola ones, which means that in the history, these were marked as'rola celestion' but are built with the same parts and most importantly the now very scarce 102 003 pulsonic cones, before the pulsonic factory burned down with all its contents (and secrets) in 1973!