United States. A Rare Silver Manhattan Project Lapel Pin GTRexclude and joined the DAF on

and joined the DAF on 1 March 1935

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

While serving with the Pearl-class cruiser H

overall in gently used better than very fine condition

except for the finish on the hardware

United States. A Rare Silver Manhattan Project Lapel Pin GTRexclude and joined the DAF onObverse 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