Details 

This is a detailed engraving by Giovanni Battista Piranesi, a master of architectural drawings and etchings. It showcases his technical expertise in depicting classical architectural elements. The engraving focuses on the construction of a wooden beam, with three different perspectives illustrating the details of the "tigna" (beams) and "praccifiones" (joints). It uses the Roman architectural vocabulary of "epistylia" (architraves) and "opas" (support). This engraving highlights Piranesi's fascination with the intricacies of ancient Roman structures and his meticulous approach to representing them. The intricate lines and shading techniques create a sense of depth and realism, making the engraving almost sculptural in its effect. Piranesi's meticulous approach to architectural representation influenced generations of artists and architects.