Keywords
accuracy, angle, antique, astronomer, astronomy, caucasian, color, color image, colour, concentrating, concentration, curiosity, curious, estimating, head & shoulders, head and shoulders, hold, holding, horizontal, indoors, inside, instrument, instrumentation, interest, male, man, mature adult, measure, measuring, mechanical, mechanism, middle age, middle aged, navigation, observing, old-fashioned, one, one person, outdated, people, person, photography, precision, profile, serious, sextant, side view, single object, solemn, surveying, tool, vintage, watching, western european, window, stock image, images, royalty free photo, stock photos, stock photograph, stock photographs, picture, pictures, graphic, graphics, fine art prints, print, poster, posters, mural, wall murals, u13287613