MECCANO PART NUMBER - 27a

Gear Wheel 1½" dia. 57 teeth

UK Drawing/Job No. 44 - (Gear Wheel 57 Teeth)

Drawing Date - 08/07/1931
The following revisions are noted on the drawing:-
Issue 4 - 09/08/1945
Issue 5 - 21/08/1951
Issue 6 - 08/02/1954
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UK Drawing/Job No. 68A - (Special Long Shoulder Pummel)

Comments
Used in parts nos. 27, 27a, 27d, 28, 29

Drawing Date - 09/07/1931
The following revisions are noted on the drawing:-
Issue 3 - 16/05/1924
Issue 4 - 18/05/1928
Issue 5 - 21/06/1945
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UK Drawing/Job No. 69 - (Grub Screw - 5/32" Whitworth)

Drawing Date - 21/06/1928
The following revisions are noted on the drawing:-
Issue 3 - 26/10/1940
Issue 4 - 25/06/1945
Issue 5 - 17/08/1950
Issue 6 - 30/04/1951
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