Agriculture (design): "The number of workmen increases with the increasing quantity of food, or with the growing improvement and cultivation of the lands. Hence arises a demand for every sort of material which human invention can employ, in building, dress, equipage or household furniture; for the fossils and minerals contained in the bowels of the earth". (Adam Smith, 1776 [1793]: 169)
país: Österreich
año: 1922
Yvert: 281
![Agriculture (design): "The number of workmen increases with the increasing quantity of food, or with the growing improvement and cultivation of the lands. Hence arises a demand for every sort of material which human invention can employ, in building, dress, equipage or household furniture; for the fossils and minerals contained in the bowels of the earth". (Adam Smith, 1776 [1793]: 169)](https://encyclopaediaphilatelica.net/storage/uploads/Osterreich281.jpg)