I recently did a study of the evolution of the Ebbets Field scoreboard from 1938-1957.
I did an illustration of each season and the big and small changes that happened each season.
You can read and see some of the illustrations on my website
HERE.
It is still a work in progress and I have updated some drawings with new info sent to me by old Dodger fans. Here are 3 different era examples of the scoreboard:
Screen Shot 2023-03-17 at 10.07.05 AM.jpg