Shipbucket

Gollevainen wrote:to me that looks like normal shielded bofors 40mm L/70 mount with something side of it, distorting its appereance from that angle

Yup, definitely a Bofors

Thanks for the help, everyone, although I'm still yet to find anything confirming that information...

Anyhow, here's Bering Strait in the Republic of Vietnam Navy service:

Splendid work!