On 16 August 2013 Bulgaria Post issued this miniature sheet commemorating the International Philatelic Salon at Sophia. It reprints the two lighthouse stamps from 2001 showing Shabla Lighthouse and Kaliakra Lighthouse.
Shabla Lt. and Kaliakra Lt., | 16 Aug 2013 | limited quantity souvenir sheet released 8/15/13
The 2001 stamps are shown below.
Shabla L/H | 19 Nov 2001
Kaliakra L/H | 19 Nov 2001
