Vintage / Replica Graflex Chassis
Padawan version - Variant 4 (removable battery - Keystone 18650 holder)
Can hold: all the current major soundboards (NB, Prizm5.1, CF9, Igniter3, ProffieBoard), a 31mm speaker (Saber Essentials), and Keystone 18650 battery holder.
Must read here: http://goth-3designs.com/instructions/graflex-vintage-replica-chassis-line/
optional soundboard cover is available for this chassis.