Hassler constructed troy pounds and avoirdupois pounds, for distribution to the custom-houses and to the States. The mass of a troy pound is 0.82286 of an avoirdupois pound's mass. The troy pound is used for determining the mass of precious metals. Hassler used the troy pound of the U.S. Mint in Philadelphia, procured in London in 1827 by Albert Gallatin, to derive both types of standards. It is likely that the Star Avoirdupois Pound (so named because of the star inscribed on top of its knob) is the avoirdupois pound that was directly derived from the Mint Pound by Hassler.

Pound Troy constructed by the Office of Weights and Measures in the Coast Survey