Black Diamond Lines Ink Blotter - World War 2 sunk By Torpedoes

Description

Black Diamond Ink Blotter. Used condition and as pictured. Slight water damage from 80 years ago.
Black Diamond SS Corp. (1918-ca. 1955), New York
The Black Heron and Black Tern were both sunk by German Torpedoes in World War II. Others might have been hit by German subs as well. Unsure as to the sailings.
Originally called the American Diamond Line, this company carried cargo between New York and Rotterdam and Antwerp. It was hit very hard by the restriction imposed by US neutrality in the early stages of World War II. During the war, the company sold off all its ships--which were under government control for the time being anyhow--then tried unsuccessfully to get back into business after the war, ceasing operations in the mid-1950s.
Economy Shipping in a rigid envelope