− | {{Doppia immagine verticale|right|Pelikan-140-StripedGreen-Posted.jpg|Duofold-DeLuxe-PearlBlackStriated-Sr-Open.jpg|300|The pens used in measurements.}} | + | {{Doppia immagine verticale|right|Pelikan-140-StripedGreen-Posted.jpg|Parker-Duofold-Cell-Sr-3V-PearlBlackStriated-Open.jpg|300|The pens used in measurements.}} |