At a guess Glen !!
coupe doors would work the same way for4 door windows, I removed inner frame around window loosened window channel that door window slides in from top of door frame down to lower side of window ,undo screws that hold in window winder to door, with door widow almost up to top tilt glass to inside of car just a little and lift upwards, while holding glass up and in slide of winder from bottom of glass slider channel and window will come out of door.
Just reverse steps to replace glass.
Hope this has not confused you.

thanks for that info Gary !

Hi guys !! Paint is 2 pack , it took alot of hours to get 1 wheel to that stage , only did it now because it had a damaged hub , so I decided only pull it apart once will do the rest later in the year after I get the car on the road.
And eventually the whole car should look that good !

Wood Wheel b4 restoration !

My 1st Wood Wheel Restoration

Yesterday figured out how to install door window !
They were clever engineers in 1930

thank you glen !

Would anyone have photo of winder mechanizm fitted to car as my 30U sedan is missing !!

Thanks  !!
for invite to forum its very very interesting !
As for avatar not quiet sure what that is ?

Does any body know if some or all 30U plymouths had wind up windscreen ??