Great info - thank you!All early US bombs had two suspension lugs and all early British bombs had a single lug. Once the US started supplying bombs to Britain and vice versa all bombs used by both sides had three suspension lugs. Two on one side and a single one 180 degrees away. When mounted in the aircraft the lug(s) not in use will be visible. IE one if on a US rack and two if on a UK rack.
The hoist cable idler is a tool and not permanently mounted on the bomb. I saw lots of them and never knew what they were.
Look for AP 1661 which I posted on the forum some time back. I will find a link when I get home and also some photos I took of US bombs in PNG in the 70s before cooking them off.
Didn't know about this cable idler before. The scheme from a B-25C/D manual I posted earlier, is obviously irrelevant to the bomb details. Apologies for that!
Checked OP1664 - this is the nearest I could find with 3 susp. lugs:
There are bombs with 2 susp. lugs (top side) only though.
Detailed description of the bomb is here.