Title
- The Billboard 1921-01-08: Vol 33 Iss 293
- The Billboard 1921-01-22: Vol 33 Iss 493
- The Billboard 1921-02-05: Vol 33 Iss 693
- The Billboard 1921-03-05: Vol 33 Iss 1093
- The Billboard 1925-12-05: Vol 37 Iss 4993
- The Billboard 1925-12-19: Vol 37 Iss 5193
- The sciopticon manual, explaining lantern projection in general, and the sciopticon apparatus in paricular93
- The Billboard 1909-09-11: Vol 21 Iss 3792
- The Billboard 1919-08-23: Vol 31 Iss 3492
- The Billboard 1920-02-07: Vol 32 Iss 692
- The Billboard 1920-02-14: Vol 32 Iss 792
- The Billboard 1920-02-21: Vol 32 Iss 892
- The Billboard 1920-05-08: Vol 32 Iss 1992
- The Billboard 1920-09-25: Vol 32 Iss 3992
- The Billboard 1920-10-02: Vol 32 Iss 4092
- The Billboard 1920-12-25: Vol 32 Iss 5292
- The Billboard 1921-03-12: Vol 33 Iss 1192
- The Billboard 1925-06-27: Vol 37 Iss 2692
- The Billboard 1925-08-08: Vol 37 Iss 3292
- The Billboard 1919-10-04: Vol 31 Iss 4091