This was a transition badge and you will see it with and without a serial number it is prior to and during the move to Monroe.
Unfortunately drum companies never really prescribed to any code of documenting a drum based on that serial number.
In fact I once heard that they started using serial numbers not for their own use per say but so schools and institutions could keep track of instruments in inventory.
I would consider this the hardest to find badge since it was a peel and stick transition badge.
It was probably used just at the beginning of the war until the one below was put in production. These badges have been found on drums from the 1960's.