It never fails, not long after the CH-53E book was published, I took photos that would definitely been in the book.
First, details of the Ramp Mounted Weapon System.
The GAU-21 mounts in the forward cabin.
A different syle of weights on the non-folding main rotor blade.
A nice photo of the antennas on the spine of a 53.
The lens of a DIRCM.