J. Theobald and Company's extra special illustrated catalogue of magic lanterns, slides and apparatus (From the smallest Toy Lanterns and Slides to the most elaborate Professional Apparatus (c. 1900) (1900)
J. Theobald and Co. · London: J. Theobald & Co. · leaf 16
3 … Long Slides for Large and Small Size Lanterns. Always select Slides at least 1 to ^ inch less in width than the opening in your Lantern where the Slides pass through. 97-—Twelve Lon’G Slides, illustrating scenes in the life of the late Emperor William the 1st, from the time of his birth to his…