I found this link and pic. certainly looks interesting.There is a chicken dinner for anyone who can identify an early stern drive that rotated into position, rather than pivoted down into position. Everything was experimental in 1962.
Haha, I believe you beat me by three minutes.I found this link and pic. certainly looks interesting.
View attachment 199101
https://dansdiscountprops.com/Discount-Boat-Props/boat-propellers/the-first-mercruiser-sterndrive/
I kept finding stories but no pics.Haha, I believe you beat me by three minutes.