Quote:
Originally Posted by 160B
RG&JS page 4-4 & 4-15 Revised 2011
Beginning of production through December 1927 Both the upper and lower caps were forgings.
There were two types:
Type 1 - The upper cap had a safety lug with a raised rib going up the center of the lug. The lower cap had a "T" shaped raised area.
Type 2 - The upper cap had a welded on safety lug with no raised rib. The lower cap had a "D" shaped raised area where the safety lug was not
welded on.
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Don,
It is Type 3 that Greg has...only used from Mid-October 1928 thru Mid March 1929.
Also see the June 1929 Service Bulletins for more information.
Pluck