Twelve inch ivory fortification sector with brass hinges, in the design of Sir Jonas Moore. All sides of the instrument bear a wide variety of markings. They consist of fortification lines, scales for tabulating weight of shot and powder for different named ordnances, and three standard sectoral scales of polygons, chords and equal parts. The names and dates with which the fortification lines are labelled can be identified as the authors of fortification treatises and the dates of their publications. Several of the lines follow Charles II's new designs for fortifications. The data given serve as an aid in military use, bypassing written calculations.

An00148440 001 l

Empty fields

We failed to find metadata for the fields listed below. It's very likely the British Museum RDF record contains the answer.
(You can click on these, but the ones with "_" in them don't work as facets. You'll see a blank page. We'll fix that at some point.)

label Exhibition Related Event About the Works Of Depicted Depicted Depicted In Inscription Place Depicted Inscribed With From About Authority (?) bibliograpic_reference Inscription By In Series dimension_diameter dimension_height dimension_thickness dimension_weight By Ethnic Group Found, Excavated, Collected By Found In inscription_note Author Calligrapher Designer Artist Influenced By Likely / Unlikely (?) Maker Painter Painted In Period/Culture Photographer Printmaker Publisher Published In px_condition px_object_exhibition_label School Subject title_translation Techniques Ware

Code / Data

View JSON  /   Download RDF  /   View RDF (web view)  /   Search British Museum website for object