Small gross
Encyclopedia
Archaically, a small gross or short gross is a quantity equal to ten dozen, i.e. 10 × 12 = 120.

This number is also known as a great hundred
Hundred (word)
Today in English, a hundred is always taken to be equal to 100. However, before the 18th century, it could mean other values, depending on the objects being counted. Sometimes the value of 100 was referred to as a small hundred and the larger value of 120 was referred to as a long hundred...

(twelve tens; as opposed to the small hundred, i.e. 100 or ten tens) or a duodecimal hundred.
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