The subject will be the fictitious HMS Compass Rose, from the novel The Cruel Sea by Nicholas Monsarrat.
In the story, the corvette is laid down in 1939 and commissioned in 1940. There's a fair amount of detail in the book, we know she was one of the first of the class, with the mast in front of the bridge, an enclosed compass house, armed with the 4" gun and 2 pdr.
So the kit is oif the later modified version, based on HMS Bluebell. The mast is moved to behind the bridge, the compass house is removed, and the forecastle is greatly elongated so that the break from the upper deck to the main deck moved considerable aft from in front of the bridge to back at the stack. With the radar added, that puts the kit as Bluebell circa 1943.
To backdate to 1941, all of the above needs to be undone.
Early Flower, like the model i will build.
What the modified version and the Revell model look like.