Key Add-OnS:
HI-C - HEARST'S INTERNATIONAL—COSMOPOLITAN
EW - ELECTRICAL WORLD
HV - THE HEATING AND VENTILATING MAGAZINE
PM - POPULAR MECHANICS
SEP - SATURDAY EVENING POST
1. 1913 EW, Vol. 62
2. 1914 HV, Vol. 11
3. 1915 Apr. PM
4. 1921 Dec. LHJ
5. 1922 SEP Model 9 - p.1
6. 1922 SEP Model 9 - P.2
7. 1929 Oct. LHJ
8. 1929 Nov. HI-C
9. 1929 Dec. LHJ
10. 1930 Apr. LHJ
11. 1930 Sep. LHJ
12. 1939 May LHJ
13. 1946 Oct. GH
14. 1947 Mar. GH
15. 1948 Feb. GH
16. 1948 Apr. GH
17. 1948 Dec. GH
18. 1949 June GH
19. 1951 June LHJ
20. 1956 June LHJ
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