Petzval-Type Lens "Derogy Opticien Succr de Wallet", c. 1850

Convertible "No. 2 Rectilineare à Foyer Multiples" by E. Françai

A.M. Objectif à Cone Centralisateur, c. 1860

"Adjustable Landscape Lens de M.L. de Pulligny", c. 1897

Portrait Anachromatique de Pulligny et Puyo 9 x 7 Focus 16 inche

"Quick Acting Portrait Lens Patent" by Gasc & Charconnet, Paris,

"Hémisphérique" Wide-Angle Lens by Darlot, c. 1868

Petzval-Type Lens by Darlot, Paris, c. 1866

Petzval-Type Portrait Lens by Darlot, Paris, No. 28020, c. 1866

Darlot Lens for Dubroni Cameras, c. 1865

Rare Wide-Angle "Hémisphérique" Convertible Lens by Darlot, c. 1

Wide-Angle Lens by Laverne & Co (Gasc & Charconnet), c. 1890

Wide-Angle Lens by A. Laverne, c. 1887

Unmarked French Landscape Lens, c. 1850

Petzval-Type Lens "Lerebours et Secretan", c. 1855

Darlot Convertible "Objectif Universel", c. 1866

Jamin Achromatic Doublet, c. 1856

Petzval-Type Lens by Lerebours et Secretan, Paris, No. 9220, c.

Portrait Lens by Marion & Cie, Paris, No. 102, c. 1862

Landscape Lens by Anzoux & Français, pre-1860

Portrait Lens by Derogy, c. 1858

Daguerreotype Portrait Lens by Richebourg, Paris, c. 1850

Jamin/Darlot Objectif double à cone centralisateur, c. 1860

Hermagis Aplanastigmat Convertible Lens, c. 1897

Hermagis Aplanastigmat No. 5 Convertible Lens, c. 1905

Photographe à Verres Combinés à Paris

Globe Wide-Angle Lens by Hermagis, Paris, No. 18267, c. 1875

Portrait Lens (Petzval-Type) by Vallantin, c. 1857

Hermagis Landscape and Portrait Lens, No. 23598 (Petzval Constru

Portrait Lens "A. Gaudin Rue de la Perle 7 au Marais", c. 1848

"Super Luxar" Multiple Lens by Hermagis, c. 1920