Obverse:

CNVT REX ANGLORV. Crowned bust left within quatrefoil.

Reverse:

EADPERD/LVNED. Long cross over quatrefoil with pellet apex. L over D.

Subtle crimping otherwise very fine or better. 

When purchased by the Harls, this coin was catalogued by J. Linzalone of Wolfstead Gallery as a very rare Cnut Danish issue. Harl’s envelope notes that the quatrefoil is superimposed over the original long cross, although this is not clearly visible. Danish coins of Cnut are known to exist with reverse dies lacking the quatrefoil and bearing English mint names. Many of these Danish issues also used the names of moneyers active at English mints, particularly in the eastern regions. Although many maybe imitative by Danish moneyers, it has also been suggested that, since coin minting at the time, even in England, was not a full-time occupation, that English moneyers may have traveled abroad to apply their specialised skills.

Other notable features include a somewhat blundered reverse legend: the final "D" of EADPERD is over-struck with the "L" of LVNED - notably a more uncommon spelling for the London mint. The coin also displays a rather crude bust style, although it is not drastically different from the Blackburn and Lyon late A style, so not definitive. It shares the same obverse die as SCBI 66 Norwegian Collections - number 2153, with a different but similar reverse die reading EADPERD[]VND. This example was found in the Horr hoard (Rogaland, Norway) and is catalogued as London mint. 

While we are cataloguing this as an official London issue, it is an interesting coin that warrants further research.

Ex S. & K. Harl Collection [bt J. Linzalone, 2010 - $2,250 as a Denmark issue of Cnut]

Further reading see:

Malmer, B. (1974) 'King Canute’s Coinage in the Northern Countries' in 'The Dorothea Coke Memorial Lecture in Northern Studies delivered at University College London 30 May 1972', University College London.

M. Blackburn & S. Lyon (1986) 'Regional Die Production in Cnut's Quatrefoil Issue' in 'Anglo-Saxon Monetary History, Leicester University Press, pg 244-5.