Bomb / Part ID please

[spotter]

Looking for a positive ID on this piece,the lads at work are finding these on a clearance task on a former RAF base, It measures approx 4 inches across at the widest part of the base
thanks
allan

 

[millsbomber]

Hi Spotter, do you know if it was used in WW1 the RAF Base,,,,, Dave

 

[spotter]

Hi dave it was built in WW2 (stirlings,wellingtons and lancasters) and saw RAF use into the 1960s