The image displays a brass ashtray inscribed with U. CASCO, ” “PUGET SOUND NAVY YARD, ” and “21 NOVEMBER 1941. USS Mackinac (AVP-13): A Barnegat-class seaplane tender commissioned in 1941, which served during World War II and later. USS Casco: The USS Casco likely refers to the USS Casco (AVP-12), a Barnegat-class seaplane tender commissioned in 1941, similar to the USS Mackinac (AVP-13). Puget Sound Navy Yard: This is a major United States Navy shipbuilding and repair facility located in Bremerton, Washington. 21 November 1941: This date likely commemorates a significant event related to the USS Mackinac and/or USS Casco at the Puget Sound Navy Yard, such as their commissioning, a notable refit, or a specific ceremony. Given the commissioning dates of AVP-12 and AVP-13 around this time, it could be related to their early service or construction. Does show w ear, corrosion and patina from age an d use.