1922 Ad Gaertner Comparator Spectroscopic Scientific Equipment Laboratory IEC1

This is an original 1922 black and white print ad for Gaertner Comparators, a product line by William Gaertner and Company, located on Lake Park Avenue in Chicago. CONDITIONThis 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: Approximately 7 x 5 inches; 18 x 13 cm Authentication: Serial-Numbered Certificate of Authenticity w/ Full Provenance Protection: Packaged in a custom archival sleeve with an acid-free black board (great for display, gift-giving, and preservation) Keywords specific to this image: Vintage AdvertisingIEC1A3C22