Sausage-shaped handles used at first (like the style 3 Bens had). Regular key shape came second (like style 4 and 5 Bens).
Sausage Shaped Keys
Key Handle Shape Sausage:
Sausage shaped key handles (similar to those on the Style 3 Big Ben and Baby Ben) used through late 1933 or early 1934.
Siesta Football Shaped Keys
Key Handle Shape Football:
Football shaped key handles (similar to those on Style 4 and 5 Big Ben and Baby Ben). Used starting in late 1933 or early 1934. May have started at the time that the Style 4 Bens were introduced.
