The Cunobelin quarter is rare. It's actually the so-called 'plastic' type, VA 2017 (CCI 04.2296). The key to its identification is that it's the only Cunobelin type which has CAM CVN on the obverse, rather than the usual CAMV. We have records of just 17 other examples. There are also other, rarer subtypes, which have A or AGR on the reverse coupled with this obverse'