Most of us know pre-Rola Celestions (possibly the best sounding guitar speakers ever made). Way back in 1947 ‘Celestion Ltd’ merged with ‘British Rola Ltd’ and became ‘Rola Celestion Ltd’ from then onwards, long before any greenbacks or Celestion branded guitar speakers were ever made. A pre-rola speaker is any Celestion greenback made between Jan 1966 and April 1971 with a Pulsonic cone. During this period, the greenback labels did not have the word ‘Rola’ written on them, and so guitarists called them ‘pre-rola’. But I am looking at a Rola - pre-Celestion, from Ferry Works, Summer Road, Thames Ditton, Surrey. This was from before the 1947 takeover of Celestion by British Rola. I am guessing it is post WWII - 1946, 1947 or shortly thereafter. Looks much like this one... https://www.gracesguide.co.uk/images/3/3e/Im194906WW-BR.jpg Anyone ever used one? Should I pull the trigger "for old tone's sake" ?