Slide:

Code s (008/33 and 006/16 - VM) indicates that the item is a slide, that is, transparent material on which there is a two-dimensional image, usually held in a mount, and designed for use in a projector or viewer. Modern stereographs (e.g., Viewmaster reels) are included in this definition.

Example:

008/33 s

245 00$aStreet paintings of Los Angeles$h[slide].