THIS is WHY we tell people to at least LIFT the skins...

That's some gnarly rot around the floor edges.

Could you see if it is possible to track down some more photos? Call it curiosity... This is a late-60's early-70's Shasta 16SC. I have one, and I have been in the process of a tough repair on mine. In the process of the repair, I have replaced the skirt behind the wheel well. The one in front of it was replaced in the original repairs in 2015. It is ALWAYS a good idea to look underneath the aluminum. It hides a lot of sin.

I get a lot of smug remarks from people who don't think it is necessary to look under the skins. They say I am using scare tactics to advance myself or my channel. LOL... This is why I don't follow other old trailers on the highways. 

Larry, can I borrow your photo? I'd like to add it to another thread, just to keep it in people's minds...

Somebody I met in Florida had a vintage camper repaired from the inside without the skin coming off. I explained how I restore my campers and he politely told me it seemed like overkill. In told him I've put 25,000 miles on my camper since the restoration without a single problem and we should talk again when he gets to 25,000.