Watch List notes:

Israeli Army/IDF tunic service pin of the elite Sayeret Matkal General Staff Reconnaissance Unit (Unit 269), with opened-back (not filled in background), circa. 1960's; not maker-marked; size: 31.25 x 19mm; weight: 1.15g. Sayeret Matkal is a field intelligence-gathering unit also tasked with counter-terrorism and hostage rescue beyond Israel's borders; formed 1957 and a successor to the earlier special operations force, Unit 101 (formed 1953).