Leo I thought I had that but it seems I don't
Something I have discovered is that often the years are wrong or the title is wrong.
I found a 1886 version of Studies 1. The Studies 2 of that set should have been 1880 but they have it matched up with a 1916 version.
Merry
Your 1961 book would be great
I have found the question book for the Finished Mystery.