United States. A Rare Silver Manhattan Project Lapel Pin GTRexclude affixed with four attachment clips

affixed with four attachment clips to a magnetic metal backplate with a field-grey wool liner indicating Heer issue

UMBALLA CANTT PUNJAB

the East Medal on July 29

the obverse consisting of an oval laurel wreath topped by a royal crown

except for the finish on the hardware

United States. A Rare Silver Manhattan Project Lapel Pin GTRexclude affixed with four attachment clipsObverse bearing the inscription MANHATTAN PROJECT A BOMB, with a castle on the bottom, reverse pin and catch with mark STERLING and WHITEHEAD & HOAG, 17. 06 mm, evidence of slight wear on obverse, extremely fine condition. Footnote: These pins were given to the workers who spent more than one year on the Manhattan Project. The Manhattan Project was the common name for what was officially known as the Manhattan Engineer District, the WWII activities