I am a stay at home mom. I do this at night a lot after the kids are in bed. I just set certain ones aside until I get around to posting some of them. Sometimes on my husband's days off, he gives me a break and lets me do this while he deals with the kids. Today, he has the kids. Lol, that's how.
In the third pic, especially with the O, you can see how the "doubling" subtracts from the stroke of the letter, rather than adding to it. It's a classic sign of machine doubling; hub/die doubling adds_to the original letter.
Yes, I'm beginning to notice that as well. I just would rather ask to be sure. I just posted another one I'm not sure about. Its a 1984 but it's seems to have shelf doubling and something else. I'm not sure. Check it out if you can. You guys are so good art this. Lol, I'm still learning slowly. It's a lot of learning and studying.
Try not to use the term "shelf doubling". It may be called mechanical doubling, machine doubling, strike doubling or even ejection doubling, but the phrase "flat and shelf-like" is used to describe its appearance. Chris
