Undetermined Mechanism, Hook-Catch, and Architectural Elements
Red-chalk sketches of a device and building details
A red-chalk sheet the catalogue divides into an undetermined mechanical contrivance, a hook-catch (arpionismo), and architectural elements. A twin-pronged fitting rises from a base beside a large disc or wheel, while a wheel set in a heavy frame occupies the lower half. Lighter strokes at the upper right block out mouldings and architectural members.
On this page
Undetermined device with disc and framed wheel
At upper left two vertical pronged fittings stand on a base next to a large circular disc or wheel. Below, a wheel is mounted within a heavy rectangular frame with an angled arm. The catalogue reads these as an indefinite mechanism together with a hook-catch.
Sketched architectural members
Faint red-chalk strokes at the upper right lay out horizontal courses and moulded profiles. The catalogue labels these architectural elements.