Good to look through this thread again. Some lovely sheets.
I know the US 1947 CIPEX sheet is incredibly common, it's like a copy is included with every eBay
purchase (an exaggeration of course) but it has started to intrigue me more and more as I stumble on the sheet in various uses.
My first sheet acquisition, a half sheet I got as a kiddie. It thrilled me.
The full monty...
and used on a couple of covers, both previously shown, I believe.
Perhaps the beginning of an interesting side collection?