Golden Coin Or Medal?

I wonder if anybody knows when the attached object could have been manufactured?

Researchers have interpreted the text to be:

HARALD
CVRMSVN+
REX AD TAN
ER+SCON+J
VMN+CIV
ALDIN+

HARALD GORMSEN, KING OF DANES, SCANIA, JOMSBORG, CIVITAS OLDENBURG (=ALDINBORG=Oldenburg in Holstein)

Two tests have determined the following metals in the object:

First test:
AU 88,5
AG 4,2
CU 3,5
FE 1,9

Second test:
AU 91,2
AG 3,9
CU 3,6
ZN 0,6

The object was found in Wollin year 1840 besides other objects, for example other coins from the Viking era. Some theories is aiming at Harald Bluetooth as the object weighs 25 grams (today) with perhaps 3-4 grams in weight loss during the centuries and therefore it could have been used for determining the value of other coins. New research shows that Harald made a limited coin reform.