A striking official service issue from Turkey, featuring the bold black “RESMΔ (Official) overprint across the portrait design, signifying government or administrative postal use only. The base stamp shows the classic crescent and star motif with a formal portrait, typical of mid-20th-century Turkish definitives. Strong typography and heavy overprint create an eye-catching, utilitarian aesthetic favored by specialists. Such official overprints are sought after for their postal history relevance, departmental usage, and shade/print varieties. A solid addition for collectors of Turkey, official (service) stamps, and overprint studies.