This may be old news but this Japanese site has all kinds of JBL photos of models I have never seen and a bunch of other audio photos.
Sorry if this has been noted before.
English: https://audio-database.com/JBL/index.html
https://audio-heritage.jp/
https://audio-heritage.jp/JBL/speaker/index2.html
https://audio-heritage.jp/JBL/speaker/index.html
https://audio-heritage.jp/JBL/index.html