A covert coat is a gentleman's overcoat typically with notched lapels which originated in the late 19th century as a "short topcoat" to be worn for hunting and horse riding.
Grey wool covert coat with notched lapels and black velvet collar, made by Aquascutum
The 12th Doctor's costume, on display at the Doctor Who Experience
An overcoat is a type of long, thick coat intended to be worn as the outermost garment for warmth. It usually extends below the knee. Overcoats are most often used in winter when warmth is more import
Covert coat
…A covert coat is a gentleman's overcoat typically with notched lapels which originated in the late 19th century as a "short topcoat" to be worn for hunting and horse riding. A popular form…
Overcoat (left) and topcoat (right) from The Gazette of Fashion, 1872
Frank Carr carrying a top coat c. 1965