E.O. Richter & Co - Drawing instrument

E.O. Richter & Co. – Precision
• German manufacturer from Chemnitz
• active mainly around 1870–1945
• known for high-quality technical drawing instruments (drafting tools)
• “DRP” often stands for Deutsches Reichspatent (typical for the period before 1945)

• 2 large compasses (one possibly with an extension)
• several insertion tips (needle, ink, pencil)
• small fine-compass set
• extension rod
• spare leads / holders
• set square (integrated into the lid)