What happens after you sew what needs to be sewn, with the interfacing? Does it stay on or wash out?
Here are 3 pics...2 of the block itself with the sashing, and one of the corner or the block, you can see how the black is transparent, sorry it's blurry though, I had to turn off the flash and my camera sucks with no flash.
block with sashing2
[ATTACH=CONFIG]31316[/ATTACH]
block with sashing1
[ATTACH=CONFIG]31320[/ATTACH]
corner of block with sashing
[ATTACH=CONFIG]31363[/ATTACH]