"NAUTICAL SHIPS PORTHOLE WINDOW HATCH SOLID BRASS" (Sparta,N.J.)
I have owned this for approx.40 years & was told it was from a Japanese Destroyer. Measures 15" outside diam.with a 12" hatch, that opens & closes with the seal working, has nine 1/2" mounting bolt holes. The weight is approx. 24lbs.Price is $325.00. If interested please leave me a name & a phone number. Thanks !