SMALL ROLLS-ROYCE SPANNER 1BA X 1/4 F9799

in very good used condition, a few signs of age and use and has original finish

Size is 2 7/8 inches long. Marked "F9799"  , sizes marked are 1BA and 1/4. I have this spanner listed for 20HP, P2 and Derby Bentley but it may suit other models.