1840 Henley Regatta Grand Challenge Cup Prize medal. The Grand Challenge Cup Rowing competition for men's eights. It is the oldest and best-known event at the annual Henley Royal Regatta on the River Thames at Henley-on Thames in England. It is open to male crews from all eligible rowing clubs. Two or more clubs may combine to make an entry. (Medal named to Charles M T Pollock No 7 Leader Club Trinity College) Team was E Shepheard, W Wood, S Wallace, J Layton, T L Jenkins, O Ommanney, C Pollock, A Dalgleish (stroke), H Gibson (cox) - they won by 4 lengths - 48mm diameter