LQ 427 pump knob variations 1925-1927

[coleman54]

Here are the pump knobs I have found at this time. These are difficult to pin down to exact months but some do have approximate time frames. All in all there was some bleed over like with other components. Some or all may have been supplied by other vendors until the final design was selected. The dating and images I show here are from my personal examples.

First image : 5/2 February 1925
Second image : 5/3 March 1925
Third image : 5/6 June 1925
Forth image : showing two different machining designs between the third and fifth images both found on multiple examples I have seen.
Fifth image : 5/6 June 1925
Sixth image : 5/10 October 1925
Seventh image : 6/3 March 1926 - 7/4 April 1927
Eighth image : showing the familiar LZ 427 type 1925-1927? Some of this type have been found by other collectors on LQ 427.

[REJ2]

I have only two 5-12 left, 5-11 right, vents may or may not be correct

[cruse]

10/25 October 1925

[cruse]

11/25 November 1925