# The Cog Boat Borne by Mercury, Hercules, Minerva and Neptune

- By: Artus Quellinus (I) (Antwerp, 1609–1668)
- Date: c. 1651 - c. 1652
- Medium: terracotta (clay material)
- Classification: sculpture
- Dimensions: height 31.7 cm x width 29.5 cm x depth 24 cm
- Credit line: On loan from the City of Amsterdam
- Museum: [Rijksmuseum](https://www.rijksmuseum.nl/en/collection/object/BK-AM-51-10--a93da42f588fc4ce9bbc4cacbd34ff33)
- Rights: [Public Domain Mark](http://creativecommons.org/publicdomain/mark/1.0/)
- Picture: https://iiif.micr.io/uRdFG/full/!1920,1080/0/default.jpg
- Who can see it: Teens profiles and older (museums give no ratings; placed by Invisible Network from the museum's own words)

Visible traces of the sculptor can be discerned in this freely modelled bozzetto (clay sketch) for the crowning element of a pump: fingerprints, sharp, deep grooves and tiny holes made by the sculpting tools to suggest depth, and short parallel lines from a serrated spatula to enliven the surface. These accents are comparable to hatching in drawings.