Saginaw, Michigan: Mershon & Morley, 1900. Printed bifolium advertisement (8.5" by 5.5") for "Portable Houses" produced by Mershon & Morley of Saginaw, Michigan. First leaf features a printed testimonial letter from a happy customer, promoting the ease of the structure's assembly; the second leaf features an illustration of the fully erected home with three gentlemen admiring their handiwork. Fine. Letter folds.