{"product_id":"popular-mechanics-illustrations-5","title":"Perspectograph, Popular Mechanics","description":"\u003cp\u003eThis charming page from Popular Mechanics demonstrates the ingenious spirit of Depression-era American hobbyists. The Perspectograph, a homemade optical drawing device designed by A.C. Ullrich with illustrations by W.S. Herrington, promised to simplify the challenge of capturing accurate perspective in landscape drawings.\u003c\/p\u003e\n\u003cp\u003eThe two-color printing in blue and black creates a striking visual presentation, with the main illustration showing a craftsman using the device to sketch an industrial waterfront scene complete with grain elevators and cargo vessels. Surrounding technical diagrams detail the construction using everyday materials: mirrors, lenses, rubber bands, and a paper roll system. The circular cutaway view reveals the optical pathway that projects the scene onto tracing paper.\u003c\/p\u003e\n\u003cp\u003eA wonderful example of the practical ingenuity that Popular Mechanics championed, this piece bridges the worlds of technical illustration and artistic instruction. Perfect for collectors of vintage DIY ephemera, optical devices, or anyone who appreciates the resourceful creativity of the American maker tradition.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSize:\u003c\/strong\u003e 9.0\" x 6.0\"\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eArtist:\u003c\/strong\u003e A.C. Ullrich\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCondition:\u003c\/strong\u003e Very Good\u003c\/p\u003e","brand":"Authentic Vintage Posters","offers":[{"title":"Default Title","offer_id":44901255086195,"sku":"IL7499","price":31.95,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0088\/3005\/8556\/files\/edited_b4165b94-f1ad-4b18-9654-334d873f5f88.jpg?v=1777322502","url":"https:\/\/www.authenticvintageposters.com\/en-nl\/products\/popular-mechanics-illustrations-5","provider":"Authentic Vintage Posters","version":"1.0","type":"link"}