Although this isn’t a fountain pen, it does surround the culture of writing. The Gorham Postal Scale was used to weigh letters, books, newspapers and other small parcels to calculate the amount of postage required (of course, in that time, it was still measured in cents. The particular one shown in this advertisement is made of sterling silver and guaranteed to be accurate. Only $10.00!
Postal scales are still used today, but they are very different, and probably not as cool – and many even automatically print the postage for you.