43 for exhebition 48 for hmv nr 2 54 for hmv nr 4 or other soundboxes. They are back againMICA diaphragms in the folowing sizes 43/48//52/54 mm.
Mica Diaphragm for HMV/Victor/Electrola No 4 soundbox
New Amber Mica Panel Mini Hexagon Shade With Torpedo Bulb Clip, 4 1/4" Height
New Rectangle Mica Lamp Shade Parchment Color Cut Corner Copper Foil Frame 707N
New made Handle (strap) for your late 101 and 102 hmv portable
New OlD HMV stock aluminium diaphragm (membraam)
ORCHORSOL Gramophone soundbox Early Alu Diaphragm type, Triangular needle port
