Because someone asked me how I put the G&D logo onto the water tank when I posted pics a couple months ago, I made a how-to blog post. Here are two "ghost signs" I made in The Gimp, along with a method of making them look less faded so they look recently painted.

I was right on the cusp of making a step-by-step how-to video, but the battery in my decent camera died, so it may have to wait a bit. Technology is a harsh mistress.

I use The Gimp because I'm a cheapskate, but the technique I outline here works equally well in Photoshop.

http://miniaturearchitect.blogspot.com/2014/10/ghost-signs-for-cardstock-models-using.html

Dan,

Nice explanation. Thanks for posting..

John

Since you instructed me how to do this a few months ago,
this has proven to be incredibly useful to me.
Thank you so much for sharing with me, and I am glad you are showing it to others as well.

Very concise and useful tutorial. Thanks