?
Thanks Ed for your input and expertise.
I went with W516 for the second two because the subject area is smaller than the first two, and that’s the way they appear in Old Cardboard. The 515 and 516 look otherwise very similar to me; are the numbers different?
For Ross Young’s, I went with W516 because of the blue lettering, which is shown on Old Cardboard for 516-2 or 3.
What is the tell that they are 515’s?
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