Up for sale: Vintage- Dynamic Physics Bower/Robinson. 1947. Rand McNally. Hard bound Student Textbook and paper bound Answer Key. This answer key is rare to find! Good condition for is age. Shows some wear from use and storage. Some discoloration of pages, some worn edges, corners, etc. The answer key shows some wear from storage, some yellowing and I did see some minor pencil marks inside. Just an extra copy that I had. See pictures! Ask all questions before sale. Shipping to US only. Check my other items!