SMALL ROLLS-ROYCE SPANNER 2BA X 5BA F6372

in very good condition, signs of use,. 

Size is 2 1/2 inches long. Marked on one side "F6372" ,  and marked F6372marked sizes are 2BA and 5BA, I have this number spanner listed for 20HP, P2, P3 and Derby Bentley but it may suit other models.