Aitken, Lilburn & Co. (Loch Line)

[Aitken, Lilburn & Co. houseflag] image by Ivan Sache

The flag is white with a red triangle charged with the letters G.S.C. Co (white).
Source: 1911 Lloyd's flagbook, as illustrated at The Mystic Seaport Foundation.
Ivan Sache, 14 January 2004