I know they are still newer but am hoping someone somewhere knows how to decode this stamp.
D 4
21 422
175 Q2C
AO/FC +5 +5
My rough guess is: D 4 is the flap but what kind of flap? 21 is the year made, 422 may be the serial number. 175 is the seat size. No idea about the Q2C. I read somewhere on FB that the FC is their should relief panel, not sure about the AO, and the + 5 +5 I assume is 5mm (or is it cm?) of padding added to the panel, but where?
