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
First Mercruiser Propeller and Sterndrive - Discount Boat Props
At the January '59 New York boat show, Mercury came out with their own sterndrive and called it Mercruiser - Ask Dan about Sterndrive Mercruiser Propellersdansdiscountprops.com
I kept finding stories but no pics.Haha, I believe you beat me by three minutes.