# The FBI teletype and the 509th history of July 1947 both record a balloon with a radar reflector.

> The FBI teletype and the 509th history of July 1947 both record a balloon with a radar reflector.

Source: https://mysteriesdept.com/mysteries/roswell/evidence/EVD0CS5149Y59QN/the-fbi-teletype-and-the-509th-history-of-july-1947-both  
Publisher: Mysteries Department  
Licence: CC BY 4.0 (credit Mysteries Department and link the page)  

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[Roswell, 1947](https://mysteriesdept.com/mysteries/roswell)Evidence

Evidence · Roswell, 1947

# The FBI teletype and the 509th history of July 1947 both record a balloon with a radar reflector.

The FBI teletype and the 509th history of July 1947 both record a balloon with a radar reflector.

Established0

## What it bears on 1 answer

[The balloon train of Project Mogul flight 4, launched 4 June 1947, with its neoprene balloons, balsa and foil…](https://mysteriesdept.com/mysteries/roswell/answers/ANS0CS513JG498T/the-balloon-train-of-project-mogul-flight-4-launched-4-june)

Most likely

FOR

## Cite it

```
Mysteries Department. (2026). The FBI teletype and the 509th history of July 1947 both record a balloon with a radar reflector. [Evidence EVD0CS5149Y59QN]. https://mysteriesdept.com/r/EVD0CS5149Y59QN
```

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**EVD** 0CS5149Y59QN

Kind

Evidence

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Established

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1

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