SHAMROCK SHIPPING CO. LTD.
image by Jarig Bakker, 31 January 2005
This funnel was adopted in 1959 and is also assigned by Mitchell to Dorman Shipping.
Sources through 1966 still show the pennant with a cross and S. A 1967 book instead describes a blue flag with a white S, perhaps a late change, but Rosanoski considers that S872 may simply have been inferred from the funnel band.