3001
In old times, a pound of feathers weighed MORE than a pound of gold. This is because gold was measured in "Troy Ounces" and feathers in "Avoirdupois Ounces." In troy ounces, one pound is 12 ounces of 480 grains each, while an avoirdupois pound is 16 ounces of 437.5 grains. Consequently, a pound of gold was 5760 grains and a pound of feathers was 7000 grains.