Meccano Ltd. Engineering Drawings

MECCANO PART NUMBER - 27b

Gear Wheel 3½" dia. 133 teeth

Drawing Job No. 187 - (3½" Gear Wheel)

Drawing Date - 29/06/1931
The following revisions are noted on the drawing:-
Issue 6 - 01/09/1944
Issue 7 - 26/07/1945
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Drawing Job No. 97 - (Pummel for 3½ Gear Wheel)

Comments
Also used for 2" and 3" Sprocket Wheels

Drawing Date - 18/11/1927
The following revisions are noted on the drawing:-
Issue 5 - 22/09/1939
Issue 6 - 09/09/1949
Issue 7 - 20/03/1950
Issue 8 - 15/10/1953
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Drawing Job No. 27 - (Meccano Bolt - 7/32" Long)

Drawing Date - 11/07/1928
The following revisions are noted on the drawing:-
Issue 3 - 23/07/1928
Issue 4 - 04/01/1932
Issue 5 - 22/06/1945
Issue 6 - 25/03/1949
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