Guernsey Post issued a set of six frama labels (ATM labels) or what they term “Post & Go” depicting Guernsey fishing boats on 2 Feb 2020. Two of the labels show lighthouses. The EUR Letter label shows Castle Breakwater Lighthouse at Saint Peter Port while the ROW Letter one depicts Sark (Point Robert) Lighthouse on the island of Sark.
Castle Breakwater L/H | 12 Feb 2020
Sark L/H | 12 Feb 2020
See more Guernsey lighthouse stamps here