UPDATE II: Here’s another 1950 Salgittzer brochure from Germany, but it is only four pages. Thanks to Jan for sharing it! This makes three different 1950 brochures.
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July 12th UPDATE: I received both of the Salzgitter brochures I purchased out of Germany. The 1950 brochure is a version lacks several of the pages shown in the brochure at the very bottom. The 1949 brochure is a tiny (1/4 sheet-size) one-page brochure.