Great example of the materials available at the start of the HO Scale.
Little Engines Catalog Model Railroad Catalog for Miniature Steam Locomotives
Walthers 2008 Model Railroad HO Reference Book Catalog
1940 Edition Model Railroad Supplies Wm. K. Walthers Catalog Phamplet 'O' Gauge
Walthers Model Railroad Reference Book HO and N Scale -- 224 New
Lionel 1962 Accessory Catalog Track Layout Sets Model Railroad Original 027 HO
Jouef Model Railroad HO Train, Accessories, Race Cars, Catalog 1970/71 French
