Building the 200 inch Palomar Telescope - 1948 Dedication issue in PDF Format Airguide The elastic is still -

The elastic is still - elastic

but works flawlessly

This camera is fitted to a motorized focuser DF-2 along with a motorized filter wheel CFW-2

I bought these when I was in graduate school at UT Austin in 1975

It is 26 pages long and includes the front and back covers

Building the 200 inch Palomar Telescope - 1948 Dedication issue in PDF Format Airguide The elastic is still -Building the 200 inch Palomar Telescope 1948 Dedication issue in PDF Format. You are purchasing a downloadable DIGITAL FILE in PDF format that is suitable for printing or viewing on your desktop, laptop, phone, e reader, or any platform that allows you to view a PDF. This is a high quality digital photo scan of the 1948 Dedication Issue of the Caltech Engineering and Science magazine. This is the complete magazine, and it shows some age and wear