Uniform system of lateral buoyage : proposals of His Majesty's government in the United Kingdom of Great Britain and Northern Ireland.
League of Nations.Organisation for Communications and Transit.
Great Britain.Board of Trade.
Geneva : League of Nations,
1931.
Caption title.
Signed: Board of Trade, London.
"Official no.: C.978.M.543.1931. VIII."
At head of title:  Official no.: C.978.M.543.1931. VIII. Geneva, December 1st, 1931. League of Nations. Organisation for Communications and Transit.
Buoys.
Uniform system of lateral buoyage.