BLYTH TUG CO. LTD.

The original black funnel bore a large white “D”, which Rosanoski takes to imply Dinsdale’s major interest. Retained after the 1923 takeover, it is photographed in 1956 and recorded in use until 1958.

A white Maltese cross on black replaced the “D”, indicating Lawson-Batey control. The source dates B759 from 1958, with photographs also showing a plain black funnel as an intermediate form.

Hillsider received the actual Lawson-Batey funnel in 1962. B760 is recorded in 1962–1984, probably overlapping for a time with B759.