New Zealand 1987 5 Cent Queen Elizabeth II Coin - Variant

New Zealand 1987 5 Cents Queen Elizabeth II Coin. A good coin showing wear consistent with its age and period in circulation. The coin however has been struck on an thin stock and is about 10% below specified thickness being about 1.1mm in thickness although the weight is almost correct leaving me to think that the anomaly lies mainly within the rim as the detail is quite good, please view images. All images shown are the actual item.