Estimating the scale of King George V's funnels

What were the approximate dimensions of a King George V-class battleship's funnels?

The provisional estimate is about fifteen feet along the longer dimension and roughly half that across, but reduced plans and differences between ships prevent a confirmed answer.

The plans show oval funnels, with a working estimate of about fifteen feet along the longer dimension and about half that across. One estimate is qualified by roughly a foot either way, while a separate visual comparison suggests about two-thirds the diameter of a twin-turret barbette. These estimates come from reduced illustrations, and Howe's funnel dimensions are noted as different from King George V's. Bulkhead spacing and the stated 750-foot overall ship length help reconstruct a scale. A printed scale cannot be applied directly after the drawing has been reduced for a book. Exact dimensions remain unresolved, and the question is left open for further checking.