1897 Halftone Print Caura Orinoco River Travelers Venezuela Historic Image XGQA9 GL1 This is an original 1915

This is an original 1915 6-page halftone print set (two pages double-sided

and flotation bags

devil's advocate

This is an original 1886 black and white in-text wood engraving of the monument of the Horatii and Curiatii

This unique tonal range comes from photogravure's variable depth of etch --the shadows are etched many times deeper than the highlights unlike the halftone processes that merely vary dot size

1897 Halftone Print Caura Orinoco River Travelers Venezuela Historic Image XGQA9 GL1 This is an original 1915This is an original 1897 duotone halftone print of the Caura river and road of the Orinoco River in Venezuela. CONDITION This 114+ year old Item is rated Near Mint Very Fine. Light aging throughout. Light creasing. No natural defects. No tears. No water damage. Product Type: Original Halftone Print; Duotone Grade: Near Mint Very Fine Dimensions: Approximately 6. 5 x 4. 5 inches; 17 x 11 cm Authentication: Serial Numbered Certificate of Authenticity w