H. CLARKSON & CO. LTD.

The flag is blue with a white saltire, surmounted by a red shield edged white and bearing a yellow “C”. Mitchell’s small funnel illustration omits the letter and white edging; Rosanoski thought that image size probably explained the omissions.

C135 apparently derives from the company website logo, but the small original image was too unclear to establish its details confidently.

C691 is sourced to LJC. No separate written explanation of its differences is given.