The set described is a Parker Classic ballpoint and a Parker 75 fountain pen, which despite similar guilloche embossing come from two different model series and thus do not form a matching set. The Parker 75 was produced from 1964 for over 30 years and belongs to the most frequent Parker writing instruments; the Parker Classic has been made since the early 1970s and partly until today. An exact age can hardly be determined from general pictures, but a range of 30 to 35 years is quite plausible. The housings are only gilded and not of solid gold.