http://www.ebay.com/itm/281262585415
This rare vintage zipper was produced by Talon from the early to mid 1930s. In their advertising, this style was the style 110, while the slightly larger version was known as the style 109. The last photo shows a 110 and a 109 side by side for size comparison purposes. It is a pin lock style, with D-shaped stops at the top. According to original advertisements, these were sold with white cotton tape so that they could be dyed to match. These are a closed end, open top style, perfect for sleeve openings on motorcycle jackets and the like. The zipper track measures 3″, while the tape from end to end measures 4-1/2″.