I just landed this on ebay. (Only paid for, but the dealer is very reliable.) Otto III, German emperor 983-1002. Denar of Köln (/Cologne /L. 'Colonia'), as heir /'King of the Romans' (/'OTTO REX'). I was wanting one as a complement to a c. early 11th-c. imitation from Lower Lotharingia, in the name of Otto's successor, Heinrich (Emperor 1002-1024, but also as 'King of the Romans'). ...It was a good day! You're cordially invited to post anything, from anywhere, corresponding to the 10th and 11th centuries ACE.