I knew it was on the edge of that timeline, Roger, but I didn't know the exact cutoff point. After this, I'm going to fantasy ships where I can make up stuff as I go along. Wait, that's pretty much what I do anyway, isn't it?Design and Construction of Steel Merchant Ships by David Arnott 1955 Edition, still discusses wooden hatch covers as an alternative to steel pontoon covers, so you’re OK.
Roger
Vic



