Release Date: April 04, 2017
Postal Authority: PTT
Title: Definitives 2017 - Antalya
Format: Serie of 4 stamps
Printer: PTT Matbaasi / PTT Printing House
I believe that a direct contact with the stamp will reveal both lights with more clarity. I will update this post if that happens.
ALL: N-5860.4 (North Breakwater at left)
ALL: N-5860.45 (South Breakwater at right)
Location: Alanya Harbor. 120 kms south-east of Antalya city following the Mediterranean coast.