This ran, generally from the August in the previous calendar year through to the factory shut down in at the end of the following July. It should also be borne in mind that these listings are given in BSA seasons.
However, hopefully they will be few and far between. As with all listings of this type there will be mistakes. These are always stamped, so any raised numbers are casting numbers. If you know the frame and engine number of your BSA you can use this list to identify it.
First of all a word of caution anybody buying a machine, particularly if it does not have any documentation, proof of origin or you are generally unsatisfied, DO NOT BUY as mistakes can later prove very expensive.