USAF Aviation Artist Daniel Witkoff signed S-3 US30 Print No. 21/100. This beautiful print measures 18x14 and is in excellent condition. This was made by Lockheed Martin. This would be a great buy for an Lockheed Martin Engineer. (SPK134). See photos. Arrange for local pickup from Summerfield, FL. See the other great Art we have for sale at seller ka_murf.