The original drawings (30" x 40") were made by Russell Porter before the 200 inch telescope was built. R. W. Porter was an architect - an excellent painter - arctic explorer - telescope maker. He designed the optical system, by which means the springfield rifle became supreme. Porter made artistic bronze castings - also leaded glass items. The "Springfiled" telescope mountngs was his idea. He was my height and wore a hearing aid. He did not play a musical instrument but loved chamber music. David O. Woodbury - author of the (200") Glass Giant of Palomar - together with Albert G. Ingalls of "Scientific American" was also of the group. Ingalls and I shared a room (8/4-5/1946) at the hotel in Springfield Vt. One of the original drawings was stolen and thus R. W. Porter sent me all of the photo's except the copy of the missing one. He also made the sketch drawing of my own 12 1/2" f g Turret telescope in Van Port PA. Your father and uncle Bill helped to build the observatory. Porter always used a pencil only to write a letter.