I have jumped into the wonderful world of strip cards. Below is a list of the sets I am working on (more or less). I probably have some others that I haven't found yet, but this is a start. If you are not sure of what the cards look like, you can go to the Non-Sport.com Collector's Resource website and search on the "R" number listed below.
R3 - Adventures of the Army, Navy, and Marines (1930s Leader Novelty Company 60)
HAVE - N6 N24
R12 - America at War (1942 W.S. Corp 48)
501-506 508 509 511 512 513 520 525 527 529 532 534 536 538 541
R13-1 - American G-Men (Horizontal) (1936 W.S. Corp 48)
101-118 121 123-129 131 133 134 136-148
R13-2 - American G-Men (Vertical) (1936 W.S. Corp 48)
703 705 706 709 712 714 715 717-719 721-723 725-731 738 741-746 748
R34 - Commando Ranger (1939 W.H. Brady 70)
1-44 46-70
R40 - Defending America (1941 W.S. Corp 48)
201-203 206 207 209 212 214 215 217 219 220 224 229 231 233-238 240
R54 - Foreign Legion (1939 W.S. Corp 48)
325-327 329-332 334-344 346-351 353-369 371 372
R58 - Generals and Their Flags (1939 W.S. Corp 24)
425 435 437 438 444 446
R67 - Heroes of the Sea (1939 W.S. Corp 24)
449 450 453-456 465 467 468 469
R99 - Nightmare of Warfare (1938 W.S. Corp 48)
905-907 911 912 915 918 920 923 924 928 930 932-934 940-942 945 947-948
R126 - Second World War (1939 W.S. Corp 48)
125-130 132-151 153-164 166-172
R128 - Series of 48: Western
3 4 6-9 11 12 14-20 22 23 26-36 38 40-46 48
R128 - Series of 48: Western
230 235 236 237
R129 - Series of 48: American History
300-302 304-306 308-310 314 316 318-320 323 325 327-332 336 339 341-344 346 347
R130 - Series of 48: Indians and West
301-312 315-317 319 321-338 340-342 344-348
R131 - Series of 48: Indians
801-809 811-814 816-818 823 825-834 837 838 841 844 845 847 848
R132 - Series of 48: Airplanes
301-303 305-315 317 338-343 345 346 348
R150 - Tim Marches On (48)
605 606 612-616 618 620-622 624-626 628 629 631-635 638 639 643-645 648
R168 - War Scenes (48)
119
R184 - Indian Chiefs - Type 1 (W.S. Corp 24)
101-105 107-115 117 119-124
R185 - Series of 48: Indian and Western (W.S. Corp)
49 52 67 85 90 93
W512 - Baseball-Aviators-Boxers-Movies Drawings (50?)
1-10 24 33 36 38 39 43-47 49 50
R3 - Adventures of the Army, Navy, and Marines (1930s Leader Novelty Company 60)
HAVE - N6 N24
R12 - America at War (1942 W.S. Corp 48)
501-506 508 509 511 512 513 520 525 527 529 532 534 536 538 541
R13-1 - American G-Men (Horizontal) (1936 W.S. Corp 48)
101-118 121 123-129 131 133 134 136-148
R13-2 - American G-Men (Vertical) (1936 W.S. Corp 48)
703 705 706 709 712 714 715 717-719 721-723 725-731 738 741-746 748
R34 - Commando Ranger (1939 W.H. Brady 70)
1-44 46-70
R40 - Defending America (1941 W.S. Corp 48)
201-203 206 207 209 212 214 215 217 219 220 224 229 231 233-238 240
R54 - Foreign Legion (1939 W.S. Corp 48)
325-327 329-332 334-344 346-351 353-369 371 372
R58 - Generals and Their Flags (1939 W.S. Corp 24)
425 435 437 438 444 446
R67 - Heroes of the Sea (1939 W.S. Corp 24)
449 450 453-456 465 467 468 469
R99 - Nightmare of Warfare (1938 W.S. Corp 48)
905-907 911 912 915 918 920 923 924 928 930 932-934 940-942 945 947-948
R126 - Second World War (1939 W.S. Corp 48)
125-130 132-151 153-164 166-172
R128 - Series of 48: Western
3 4 6-9 11 12 14-20 22 23 26-36 38 40-46 48
R128 - Series of 48: Western
230 235 236 237
R129 - Series of 48: American History
300-302 304-306 308-310 314 316 318-320 323 325 327-332 336 339 341-344 346 347
R130 - Series of 48: Indians and West
301-312 315-317 319 321-338 340-342 344-348
R131 - Series of 48: Indians
801-809 811-814 816-818 823 825-834 837 838 841 844 845 847 848
R132 - Series of 48: Airplanes
301-303 305-315 317 338-343 345 346 348
R150 - Tim Marches On (48)
605 606 612-616 618 620-622 624-626 628 629 631-635 638 639 643-645 648
R168 - War Scenes (48)
119
R184 - Indian Chiefs - Type 1 (W.S. Corp 24)
101-105 107-115 117 119-124
R185 - Series of 48: Indian and Western (W.S. Corp)
49 52 67 85 90 93
W512 - Baseball-Aviators-Boxers-Movies Drawings (50?)
1-10 24 33 36 38 39 43-47 49 50