Great Britain. Penny, ND. S.886A; N.234; EMC#2010.0309. Aethelheard Archbishop of Canterbury, 798-805. Group III. Fifth Issue. With Coenwulf of Mercia as Overlord. There are only 29 known coins of Archbishop Aethelheard with Coenwulf. This is only the second known with AR at center for Archbishop. Only other like coin, same dies, in the Vatican Library collection. Extremely Rare. Irregular and chipped edge, porous with hairline flan crack across coin. Extremely Rare. Sharpness of Very Fine. Estimated Value $2,500-UP