Project 10073 Record Card and Incident Report — Harrisburg, Pennsylvania, June 1955

This document consists of a Project 10073 record card and a subsequent teletype report regarding an unidentified aerial phenomenon sighting in Harrisburg, Pennsylvania, on June 1, 1955. At 1713Z, a civilian member of the Harrisburg Ground Observer Corps (GOC) reported observing a single, round, silver, basketball-sized object with no visible markings. The witness claimed the object descended onto railroad tracks before disappearing. The report explicitly states that the object made no sound. Following the report, an investigation was conducted by the 548th AC&W Squadron at Benton Air Force Station. The intelligence officer assigned to the case noted that 12 other witnesses present in the area at the time of the sighting denied observing any such object. Due to the lack of corroboration and the clear weather conditions, the official conclusion recorded on the project card suggests that the witness may have been experiencing a hallucination. The document includes standard military teletype headers, routing the information to various commands, including CONAD, the 26th Air Division, ATIC at Wright-Patterson AFB, and the 4602nd AISS.