Panorama slide: Small ('toy') format -- 7 cm
Sample image of this type of slide – slide shown is unnumbered slide from [Miscellaneous characters] (miscellaneous: Lapierre et Cie, at least 7 slides, n.d.)
Museum Sloten – reproduced by permission. Digital image © 2020 Museum Stedhûs Sleat - CC0 (no copyright).