Hull Number: SC 254
Submarine chaser SC 254 served at Plymouth, England (Base 27) then at Queenstown, Ireland (Base 6), and after the war took part in the North Sea minesweeping operations.
A photo showing the unusual small hull number characters. There are several photos of chasers that show small hullmarks, but the typical arrangement is much larger characters.

Photograph of SC 254. From a collection of photos of a crewman of SC 254. Thanks to Laura Hawkins for submitting the images to The Subchaser Archives.
Photo: Group of chasers at Queenstown, Ireland. Left to right: SC 271, SC 164, SC 272, SC 343, SC 181, SC 222, SC 254, SC 356, SC 323, SC 206, SC 346.
Photograph of submarine chasers. T. Woofenden Collection.
