Scientific American, A Weekly Review of Progress; Includes four issues for December 1920 (December 4, December 11, December 18, and December 25)

Softcovers. Includes four issues of the Scientific American weekly magazine for 1920: December 4, December 11, December 18, and December 25, 1920. Dec 4 issue VG-; the others VG. All somewhat age-toned. The Dec 4 issue has a vertical crease; the others have light vertical creases. Each issue has some rubbed soil to the covers, but overall, are fairly clean. Corners a bit bumped, and just a bit of light edgewear. The staples are somewhat rusty. Pages are a bit age-toned, but clean. Many ads; including automotive ads, some full-page. The rear cover of the Dec 11 issue is a full page color ad with Santa puffing on a Murad Cigarette; with the quote "What could you Enjoy more this Xmas than Murad?" (See attached image.) ; 28B; 13-3/4" x 11".