Ausco Catalog, 1958, p. 2, lifting mechanism, circled item in center of page. |
Cover page and p. 6 of a catalog published by Shelby Industries, Inc., Shelbyville, Ky. 40065; publication data unknown. |
One-page flyer published by Wesbar Corporation, West Bend, Wisc. 53095; publication data unknown. |
Six-page brochure published by Fulton Manufacturing Corporation; publication data unknown. |
Four-page brochure published by The Hammer Blow Corporation, Wausau, Wisc. 54401 and entitled Bulldog Boat Trailer Jacks; publication date unknown. |
Cover page and p. 11 of a catalog published by Dutton-Lainson Company, Hastings, Neb. 68901 and entitled DL Marine Products; published 1988. |