It's about as heavy as a Chihuahua.
(a.k.a. Chihuahue(o) (FCI standard)
It's about four-fifths as heavy as a Brick.
In other words, 1,450 pennyweights is 0.78 times the weight of a Brick, and the weight of a Brick is 1.3 times that amount.(Standard, traditional face brick - 1,900 cu. cm (120 cu. in))
It's about one-and-two-thirds times as heavy as a Human Brain.
In other words, the weight of a Human Brain is 0.599 times 1,450 pennyweights.(adult)
It's about half as heavy as a Gallon of Paint.
In other words, the weight of a Gallon of Paint is 2 times 1,450 pennyweights.(excluding container; average weight)
It's about half as heavy as a Cat.
In other words, the weight of a Cat is 2 times 1,450 pennyweights.(Felis catus) (Domestic; healthy weight)
It's about two-and-a-half times as heavy as a liter of Water.
In other words, 1,450 pennyweights is 2.254939 times the weight of a liter of Water, and the weight of a liter of Water is 0.443471 times that amount.(fresh; 4° C / 39.2° F; maximum density)
It's about one-third as heavy as a Bowling Ball.
In other words, 1,450 pennyweights is 0.331428571 times the weight of a Bowling Ball, and the weight of a Bowling Ball is 3.01724138 times that amount.(most common selection among male bowlers)
With an allowable range of 3,208.33333 pennyweights, the most-preferred bowling ball weight among adult, male bowlers is 4,375 pennyweights. Because regulation balls measure the same diameter irrespective of their weight, ball density varies by size and balls weighing less than about 3,215.07466 pennyweights will float in water.