I've got a very specific request and I'm hoping someone here can point me in the right direction.

I've been playing around with developing dungeon maps in CC3 that mimic the style of the old 2e AD&D Ruins of Undermountain boxed set maps. Here's an example of what I've done:



Now, in the followup to that product, Ruins of Undermountain II, the maps are slightly different. Rather than being drawn over a black background, they are drawn over a black and gray tile that looks like pavement stones (two colors, black background with gray outline of stones).

I can't find an image of an UM II map online anywhere to show what it looks like (and my scanner is on the blink), but if anyone familiar with these maps has any idea where I can find a scalable tile of something similar, I would greatly appreciate it. Ideally, it would be a 1000 x 1000 pixel hig res image, preferable PDF, but I can easily convert to PNG if needed.

Thanks in advance - any help or suggestions would be greatly appreciated!