On 15 Feb 2017 GuernseyPost issued a set of 6 Post & Go stamps (sold by vending machine) featuring lighthouses of the Bailiwick. The lighthouses depicted include: Casquets, Sark (Point Robert), Castle Breakwater, Les Hanois, Brehon Tower and Alderney. Casquets is also pictured on the presentation pack cover.
Sark (Point Robert) L/H | 15 Feb 2017
Castle Breakwater L/H | 15 Feb 2017
Brehon Tower L/H | 15 Feb 2017
More lighthouse stamps from Guernsey can be viewed here