PRUSSIA 1859 Highly Decorative Commercial Invoice from Kohlfurth bei Solingen to Frankfurt a/M. – Vertical Pair 1 Sgr Rose (Michel No. 10) with Premium Box Cancel (Kastenstempel). Rare. Item Description: This lot features a fully detailed commercial invoice (Rechnung) dated November 3rd, 1859, sent as an entire folded letter sheet (without envelope) to Messrs. J.G.B. Frast in Frankfurt am Main. It boasts an exquisite, ornate lithographed heading vignette and features an extremely rare, highly detailed early industrial illustration (factory coat of arms/mechanical forge) in the bottom left corner. Franking & Postal Markings:Stamps: The verified date (November 1859) securely attributes the stamps as the sought-after Michel Catalog No. 10 (with the background lattice/network underprint) .Cancellations: Perfectly tied by two remarkably clean, sharp, and strike-centered rectangular boxed datestamps (Kastenstempel): "SOLINGEN 3 11 * 4–5" (applied on the exact day of invoice issuance, late afternoon 4–5 PM).Additional Markings: The front exhibits a flawless, complete strike of the oval blue company cachet: "DANIEL KAYSER / SOLINGEN".