General Electric Thinline Air Conditioner. All new G.E Thinline Air Conditioner takes up 1/3 less space! Classic original advert 1956. This is a large advert - 14 x 10.5 inches approx and is sold unmounted. Please note: Image shows the advert with a mount, this is to show how it looks. The large mount needed is difficult to post without damage so these extra large adverts are posted in a strong postal tube. All our adverts, unless clearly stated are Originals from the date shown. They make excellent pieces of wall art and stunning gifts. Many are rare and hard to find and once sold, may not be replaced. Remember you are buying a piece of history. Website watermarks are not on original.