I got 3 or 4 more copies of The Menace from Earth, for example, and 3 more of The Green Hills of Earth, all of which of course are shown on the Collections/Anthologies page of my Heinlein Cover Art galleries. As seen here, I finally was able to find an old 1951 Shasta first hardcover printing of The Green Hills of Earth with cover art by Hubert Rogers, who had illustrated many Heinlein stories in pulp magazines. The price wasn't too bad, and I was very glad to get it.
I also came across a kinda funky reprint of Beyond This Horizon, which originally was from the April and May 1942 issues of Astounding Science-Fiction, and now is in the Winter 1952 issue of the magazine titled Two Complete Science-Adventure Novels. This latter is--as are the earlier Astounding, naturally--on my Pulp Magazines page. I'm also waiting for an early hardcover British printing of the 1949 Red Planet I had not seen before; having come all the way from Australia, it spent over a week getting cleared in Customs, and I believe it should be arriving shortly.
Perhaps the most peculiar thing I found, though, was The Lucky Bag 1929...which is the yearbook of the U.S. Naval Academy, specifically for the year Heinlein graduated. Although the future author himself doesn't yet appear to have any work appearing in this weighty, oversized tome bound in fancy tooled leather, he does receive, like all the other graduates, a page dedicated entirely to his portrait and a mildly comedic biographical blurb. This great big book really was quite a find, and I am so happy to have it on my shelf at last. Scans of the cover, of some of the introductory patriotic naval artwork by Henry Reuterdahl, and of course of the Heinlein page itself are viewable on my On Heinlein page.