THE HISTORICALLY IMPORTANT 'BUCHAN' ROYAL VISIT GOLD MEDAL

Denmark, Christian IV (1588-1648), Gold Hebræertype ¼ Ducat, 1646, Copenhagen, CHRISTIA 4 D G D R, crowned full-length King right, holding orb and sceptre, rev. 0.81 grams of gold (Hede 36; S.10; Fb. 41), some overt die clashing and crimping,  near very fine, very rare

This was the identification given by the expers of the forum

Is small, only 15 mm diameter and have a weight of 0.81 grams of gold 

GOLD. RARE. 

Probably a restrike Official contemporaneous , although it is clearly circulated.