2026-01-222026-01-221851http://hdl.handle.net/20.500.11837/3493This document comprises a collection of historical patent manifold letters dating from 1851. The correspondence records official communications concerning administrative authority, legal rights, and institutional arrangements, reflecting the formal language and governance practices of the mid-nineteenth century. As a primary source, the letters provide insight into contemporary legal frameworks, bureaucratic processes, and the socio-political context in which patents and official mandates were issued and interpreted.en