It consists of 23 silver-gold items for horse-trappings, with rich stories inscribed. There are several different groups of applications made by different masters in different times - open-worked, of real and mythical animals with a frame and background. However, their presence in a finding suggests that they belonged to a man from the times of Odrin ruler Kotis I - IV century BC. The Letnitsa treasure is one of the most significant monuments of Thracian art and is important for the study of the history of ancient Thrace. The region has many Thracian mounds that have not yet been studied.