How old is my Celestion speaker?/When was my Celestion made?

Since 1956, all Celestion chassis drivers have been stamped with a date code (two numbers and two letters), denoting exact date of manufacture. The codes are added on the production line and are placed on the speaker’s chassis leg, on the front gasket or, in more recent times, on a label on the magnet edge.

If you can track down the date code, simply refer to this set of tables, which provide an accurate record of the date codes used throughout the years.