Scale 1:48. An ozatrace copy of a plan showing the framing and longitudinal shell expansion for the frigate Mermaid (1966). The vessel's ship number '2284' is listed on the drawing. A Yarrow & Company Ship Drawing Office builder's stamp dated 5 June 1968 is printed on the plan. A Yarrow & Company Naval Constructor's Overseer stamp with a signature, dated 5 June 1968 is also printed on the drawing.