This study investigates the epigraphic and paleographic relationships across the major linear syllabic scripts of the Bronze Age from the Aegean Sea to Indus Valley. Through a comparative analysis of sign topologies, we comment on the degree of structural and graphic continuity during script transmission across the Bronze Age civilizations. Our findings demonstrate a strong epigraphic affinity, proposing shared scribal traditions despite distinct underlying languages and long distances. Furthermore, we contextualize the enigmatic Byblos syllabary and the Indus Valley script within broader Mediterranean graphic traditions, examining potential structural parallels with the other scripts. Ultimately, this research clarifies the paleographic affinity of Bronze Age linear writing systems, illustrating how administrative needs, regional trade networks, and material media shaped the development of linear syllabic scripts.