A metric gram would be precise enough of a measurement for a stamp.
Newtons
This isn't a US Postage stamp, but a charity label. It was probably sent out in a mass mailing requesting people to send donations. And by putting them on the back of other envelopes, they would get advertising.
I got 0.0533g after weighing out several hundred and taking an average, stamps from 1870 to 1990
I would use a postage scale or a laboratory balance to derive the mass of the card.Once I knew the mass, if I had to write it down, remember it, or tell other peopleabout it, it would undoubtedly be most convenient to express it in grams .
Mass is measured usingtriple beam balance bathroom scale baby scale postage stamp scale kitchen scale floor/ truck scales
mass of a substance or an object
You would use the unit of measure called "kilograms" to measure the mass of an elephant.
No, millilitres is a measure of volume not mass. You would use milligrams.
The most common thing you would measure mass in would be grams and kilograms
Milligram: to measure its mass.
Anything with masscan have that mass measured and expressed in grams.
You Use Atomic Mass Number