There are 4 versions, both unaltered Mono and Stereo, and then both "declicked" versions.
Original 33 & 1/3rd 7" promo
At exactly 4 min. there is an additional 11 seconds left in this original mix of the song. It was later chopped out on all official releases.
1. Gallows Pole mono
2. Gallows pole mono (declicked)
3. Gallows Pole stereo
4. Gallows Pole stereo (declicked)