Sacrificial anode on one ram is still there. Trim tab has seen better days.
Back in the day the yard manager sent me to look at one of the yacht club's RC boats. A steel barge converted to motorboat with Mercruiser I/O. Don't remember the exact complaint, but I looked over the transom and the outdrive was fizzing --- like Alka Seltzer not Champagne. Cut the shore power and gave them the bad news. It would for sure have looked like the above in a day.