If you have any vintage media on this, I'd like to see it.
:-)

My Tolley is marked for a 5-1/2 Dram load with a 3-1/2 case.
The Holland and Holland is set up for the 3-1/4" case - but I'd very much like to see any advertising or specification media on the numbers you show here.

Thanks!

Cheers
Tinker