Hi Banksy,
Well i can have a go at it,
Pic 1: A group of post war 40mm Bofors representative/proof rounds the black one i think being the proof.
Pic 2: 35mm Oerlikon with dummy projectile, 30mm Raden case with a dummy projectile, 30mm Aden round, 20mm Hispano practice round, ? 2cm WW2 German Mauser 151/20 Day fighter incendiary round, .50 Cal round
Pic 3: A re stencilled 155mm round with fuze plug ( i am sure someone can add to this for you )
Pic 4: Same as pic 1
Pic 5: 2 fired and recovered 2pr projectiles
Pic 6: Clip for rounds in pic 1 and 2
Pic 7: 90mm Cockrill round
Pic 8: 120mm Proof of propellant round (as stencilled on projectile) ? 90mm recoilless round,unknown to me smoke round, 20pr smoke round, ? 75mm French WW1 HE?
Pic 9: 37mm VSM AP round minus it's top steady band.
All of the info you need is on BOCN if you want to taker a little while to have a look i am sure you will be able to identify it all your self.
Best regards Weasel.