And now, from out of the depths of my collection:
Spirit Section 4/23/1944. But this one is slightly odd even for those, it doesn't have a newspaper masthead or date on it. What it does have is Will Eisner's signature up there, in what looks like Grease Pencil, despite this being an issue he didn't work on while in the Army. I had to figure out the date using the GCD. The book was clearly glued together at the spine before it was trimmed, but it wasn't trimmed very evenly. Still, a neat book including what looks to me like Jack Cole on the Spirit, Klaus Nordling on Lady Luck, and Fred Guardineer on Mr. Mystic.