“Stranger things” was based on an actual secret project by the US government, (or at least we heard that thorough our covert channels of sci-fi and mystery)
 
Get the keytag that might possibly uncover the secret and give you entry to the “upside down”. 
Front side only. MONTAUK PROJECT. 
 
Proximately 3 1/2“ x 1 1/2“. 
 
Printed in gold and black key tag.
 
Produced on adorable plastic.
 
Made in the USA.