The photographer was almost certainly Battiss.
Marked 'Giles' Things' on original envelope.
Male nudes:
2x three from below
2x three squatting; See, speak and hear no evil
2x three; in a pile
2x three; front and side
2x three; from behind
1x male genitalia close
1x male genitalia from behind
1x male nude holding two condoms (perhaps Goo)
Hands:
2x hands folded to form a canopy