SBK 23E (1856–1857) – Berner Drucke, Thin Paper with Red Silk Thread Catalogue Value (SBK 2018): 575 CHF** A classic Swiss Strubel issue from the Bern printings of 1856–1857, printed on thin paper with a red silk security thread. The stamp shows the characteristic colour grünlichblau (greenish-blue) assigned to SBK 23E. The printing features the typical softer Bern-style lithographic impression, with slightly irregular rhombus patterns and moderate ink spreading around the figure of Helvetia. Key Identifying Features: • SBK 23E – Bern Printing 1856–1857 • Colour: Grünlichblau (greenish-blue) • Paper: Thin paper (dünnes Papier) • Security Thread: Red silk thread (Seidenfaden hellrot), clearly visible on reverse.