Thank you for your comments. In fact the gage book was my mental salvation during the covid-19 out break.
I too use gages even today in my real job. So this was fun to look into the mind of the tool makers at AO and Colt's.
The first major break through was figuring out the gage numbering system and realizing that the numbers changed
over the years and with different manufacturers.
The two greatest moments during this process were the discover of the WD-40 Rust Soak that made cleaning and restoring the
gages to new a simple task. GREAT product highly recommend it.
The other was putting together the wood gage box with it's gages after 50 plus years. The wood box I had for decades and
really wasn't totally sure it was real. However, when I was putting the book together I was trying to think of other items in my
collection that might "look" good in this book when I remembered the box. So I pulled it out and was photographing it when
looking through the view finder I reread the label inside the box lid. The gage numbers that were to be housed in the box looked familiar.
A light bulb went on and I realized I had those gages. When they were slid into place in the box it was an incredible feeling.
"It was like they were made for each other." which of coarse they were...after 74 years they were back together. WOW