Italian States — Duchy of Parma, 1857, 25c lilac‑brown cover from Parma to Verona

Folded entire sent 2 November 1857 from Parma to Verona, franked with the 25 centesimi lilac‑brown stamp (Sassone No. 10). The stamp is in excellent condition and neatly tied. Accompanied by a certificate signed by Dr. Enzo Diena (9 Dec 1986) confirming the authenticity of both cover and stamp, with photo reproduction included.