The short version The archive turns up 18 records, most of them around Andean colonial city, possibly Ecuador and Andean South America (possibly Arequipa, Peru). 15 are confidently dated; the other 3 are educated guesses — about as precise as it sounds. All are free to use.
Posing at the International Building, Rockefeller Center, New York, 1960s 1960–1969 · Rockefeller Center, New York City Textilträger und neugierige Menschenmenge, Andenstraße, 1960er Jahre 1960–1969 · Andean South America (possibly Arequipa, Peru) Chaac-Maskenfassade, Codz-Poop-Palast, Kabah, Yucatan, 1960er Jahre 1960–1969 · Kabah, Yucatan, Mexico Highland Market Bargaining, Guatemala, 1960s 1960–1969 · Guatemalan Highlands Klosterhof durch einen kolonialen Torbogen, Anden, 1960er Jahre 1960–1969 · Andean colonial city, possibly Ecuador Kaiser Wilhelm Memorial Church and New Tower, West Berlin, 1960s 1960–1969 · Berlin, Germany Trapezoidal Doorway Framing the Ruins, Machu Picchu, 1960s 1960–1969 · Machu Picchu, Peru Working Dog on a Chain, Nordic Summer Camp, 1960s 1960–1969 The Freedom Bell Plaque, Rathaus Schöneberg, West Berlin, 1960s 1960–1969 · Rathaus Schöneberg, Berlin Köder am Haken, Boot am See, 1960er Jahre 1960–1969 Holländische Kokermühle auf ihrem Umgang, Niederlande, 1960er Jahre 1960–1969 · Netherlands Meilenstein 1523, Endpunktschild des Alaska Highway, Fairbanks, 1960er Jahre 1960–1969 · Fairbanks, Alaska Bronze Age Gold Discs and Spearheads in a Museum Case, 1960s 1960–1969 Tourist an einer Balkanruine, 1960er Jahre 1960–1969 · Balkan region Plattfisch auf Sand, 1960er Jahre 1960–1969 Cenote or Spring-Fed Pool, Yucatan, 1960s 1960–1969 Cenote or Subtropical Spring, Aerial View, circa 1960s-1970s 1960–1975 Forested River Valley with Pasture, Appalachian Region, 1970s 1968–1978
certain inferred low confidence