1922 Ad Precision Instruments British Thermal Units Gravity Recorder IEC1 XES4 This is an original 1906

This is an original 1906 sepia halftone print of a view of the head of Valley 2

" This is an original 1913 two-color print of a sketch of a nude bust by Otto Rieth

maker of Postum Coffee

Keywords specific to this image: Archeology

1922 Ad Precision Instruments British Thermal Units Gravity Recorder IEC1 XES4 This is an original 1906This is an original 1922 black and white print ad for the Precision Instrument COmpany, specially featuring the Gravity Recorder and the Recording Calorgraph. CONDITION This 89+ year old Item is rated Very Fine +++. Light aging throughout. No creases. No natural defects. No surface rub. No tears. No water damage. There is some bleed through visible on this this ad. Product Type: Original Print Ad; Black White Grade: Very Fine +++ Dimensions: