The arrow is cleverly "hidden" and only seen when you "hover" over the picture reel to the left of the large picture, bottom. When using the app, you can simply slide the "reel" of pictures beneath the main one to see all photos.
This product would be a great fit for collectors of railroad memorabilia seeking to add to their collection with premium-grade, reproduced vintage railroad bus advertisements featuring Santa Fe, Pennsylvania, and Frisco logos.
