The Sign of Four is a British comics, illustrated by Robert Forrest, published in the Look and Learn magazine from 7 september 1968 (No. 347) to 7 december 1968 (No. 360).
Look and Learn No. 347 (7 september 1968, p. 10)Look and Learn No. 347 (7 september 1968, p. 11)Look and Learn No. 348 (14 september 1968, p. 26)Look and Learn No. 348 (14 september 1968, p. 27)Look and Learn No. 349 (21 september 1968, p. 26)Look and Learn No. 349 (21 september 1968, p. 27)Look and Learn No. 350 (28 september 1968, p. 12)Look and Learn No. 350 (28 september 1968, p. 13)Look and Learn No. 351 (5 october 1968, p. 12)Look and Learn No. 351 (5 october 1968, p. 13)Look and Learn No. 352 (12 october 1968, p. 24)Look and Learn No. 352 (12 october 1968, p. 25)Look and Learn No. 353 (19 october 1968, p. 24)Look and Learn No. 353 (19 october 1968, p. 25)Look and Learn No. 354 (26 october 1968, p. 24)Look and Learn No. 354 (26 october 1968, p. 25)Look and Learn No. 355 (2 november 1968, p. 24)Look and Learn No. 355 (2 november 1968, p. 25)Look and Learn No. 356 (9 november 1968, p. 22)Look and Learn No. 356 (9 november 1968, p. 23)Look and Learn No. 357 (16 november 1968, p. 22)Look and Learn No. 357 (16 november 1968, p. 23)Look and Learn No. 358 (23 november 1968, p. 24)Look and Learn No. 358 (23 november 1968, p. 25)Look and Learn No. 359 (30 november 1968, p. 24)Look and Learn No. 359 (30 november 1968, p. 25)Look and Learn No. 360 (7 december 1968, p. 22)Look and Learn No. 360 (7 december 1968, p. 23)