Official abbreviation: H.Ht.
Instituted by the Chamber February 19th 1965.
Approved by King Frederik 9th, March 6th 1965.
Silver Medal awarded to persons who have been in a leading position in a union or equal for 10 years.
The Gold medal awarded for 25 years.
Design: Ribbon have 3 red and 2 white alternating stripes of equal thickness. Obverse/reverse unknown.
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