The Venusaur (15 / 102) card can be found in the Base Unlimited set.
Recently sold 10 times and based on those sales is worth around £35.68.
Currently, there are 16 open listings for this card on ebay.
This card sells in the range of £2.53 to £68.83, making it highly volatile.
This Rare Holo card was illustrated by Mitsuhiro Arita.