On Sun, 28 Nov 2004 00:46:17 +0000, Timothy Murphy strung together this:
Ah, the Crabtree 4520/1, 168mm x 114mm. Entirely coincidental I think, they've been around for years and I've never seen one smack in the middle of a set of tiles. The sizes are nowhere near 2 tiles, if that's the size they were meant to be then they would be, not miles out as they are. I think someones been making up the idea of why it is that large!