A fellow member sent me a very useful reference for checking out vintage IWC dials.
View attachment 901739
The IWC I posted here fits into the era "1947 to at least 1953 mostly fancy jumbo golden cases like Bombay etc"
by the movement number and case numbers.
I studied the logo script (including the Schaffhausen) and the OP dial logo script matches very well with the first (top) reference from the era fit. The matching ref script is also "thick". There was a lot of script variation (including thickness) for the different eras.
Click to expand...