This link is to thousands of historical photos of Philadelphia, Pa. It opens on an image of the Trans Continental Hotel and from there can be searched for other photos. There's no way I'm going to have time to look at every photo, but perhaps someone else can find one that shows the root beer stand on Elm Avenue. If you do, please post it and we'll make arrangements to send you a free ACL Book. In the meantime, click on the picture of the Hotel on the website and it will take you to a super-zoom page where you can examine the photo in detail. Every image on the site has the zoom feature ...