
vs
Looks like two angles of the same thing to me.
What are you talking about? Those two pictures are obviously of the same beam.
On second look, same rivet count/position on the gusset. The fracture line appears very similar?
The rivets on the angle brace match?
But the angle brace behind the lower cord does not appear to match?
And yet another view with a matching brace?: 
IMO, a long lens was used, compressing the background, making the drain pipe and other angle braces appear closer than they are.
///objects are closer than they appear\\\
I'm about 90%+ on this assessment.
Irt 87. Those 2 pictures look to me to be the same problem but at a different angle. If you zoom in on the bottom picture you can the drain pipe. Also the same defect appears on both pictures above the small plate with 10 rivets. It appears to be a rust spot or paint chip several inches up on the right side.