RARE MADE IN ENGLAND 1943 4 INCH ADJUSTABLE WRENCH

in good used condition, minor rust marking on one side (as picture), in working order

Size is 4 1/4 inches long (nominally 4"). Marked on one side "MADE IN ENGLAND" and on the reverse "5/16 230 1943" (the 230 marking is under the War Department arrow /crows foot marking). A very rare English  wrench / adjustable spanner and would be a nice item to add to a wrench collection