OMAS 360 CARTRIDGE FILLER - NOS

I have three NOS Omas 360 cartridge fillers in blue/green resin with different nib grades ( EF, F and M).
One of them has a 75th anniversary nib, grade M ( sold). The difference between M and F is very minimal.
I have three NOS Omas 360 cartridge fillers in blue/green resin with different nib grades ( EF, F and M).
One of them has a 75th anniversary nib, grade M ( sold). The difference between M and F is very minimal.