Wair & Barnes (manufacturer, LaPorte, Indiana) 1900 Advert for "High Grade Backgrounds at Popular Prices" - "Made only by Weir & Barnes, LaPorte, Ind."
Advert Internet - Original source ill-defined This ad appeared for Wair & Barnes of LaPorte, Indiana appeared multiple times in the St. Louis and Canadian Photographer in 1900.
(Alan Griffiths, 16 September 2020) I'm indebted to Joan Hostetler for bringing this advert to my attention.
