Looks somewhat like this without the chain - says WW II
http://www.ebay.com/itm/VINTAGE-STERLING-SILVER-USN-MILITARY-HAT-PIN-BADGE-ANCHOR-WITH-CHAIN-1-3-4-NR-/281155296545
Type: Posts; User: Epi-hunter
Looks somewhat like this without the chain - says WW II
http://www.ebay.com/itm/VINTAGE-STERLING-SILVER-USN-MILITARY-HAT-PIN-BADGE-ANCHOR-WITH-CHAIN-1-3-4-NR-/281155296545