GEOLOGICAL PERIODS IYear: 1892Price: £50Number in set: 6VENOMOUS SNAKESYear: 1903Price: £15Number in set: 6CURIOUS REPTILESYear: 1949Price: £6Number in set: 6TURTLESYear: 1958Price: £5Number in set: 6PREHISTORIC ANIMALS STILL SURVIVINGYear: 1959Price: £5Number in set: 6DINOSAURSYear: 1959Price: £6.5Number in set: 6GIANTS OF THE EARTH (DINOSAURS)Year: 1998Price: £6Number in set: 6