Weighing scale
The balance (also balance scale, beam balance and laboratory balance) was the first mass measuring instrument invented. In its traditional form, it consists of a pivoted horizontal lever with arms of equal lengththe beamand a weighing pan suspended from each arm (hence the plural name ""scales" for a weighing instrument). The unknown mass is placed in one pan and standard masses are added to the other pan until the beam is as close to equilibrium as possible. In precision balances, a more accurate determination of the mass is given by the position of a sliding mass moved along a graduated scale. Technically, a balance compares weight rather than mass, but, in a given gravitational field (such as Earth's gravity), the weight of an object is proportional to its mass, so the standard masses used with balances are usually labeled in units of mass (e.g. g or kg).
Dollhouse
The most common standard for adult collectors is scale, also called 1" or one inch scale (where 1 foot is represented by 1 inch.) Among adult collectors there are also smaller scales which are much more common in the United States than in Britain. or half inch scale (1 foot is 1/2") was popular in Marx dollhouses in the 1950s but only became widely available in collectible houses after 2002, about the same time that even smaller scales became more popular, like or quarter inch scale (1 foot is 1/4") and or "dollhouse for a dollhouse" scale.