<?xml version="1.0" encoding="utf-8"?>
<rdf:Description rdf:about="https://catalogues.royalsociety.org:443/CalmView/record/catalog/AP/11/7" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://purl.org/dc/elements/1.1/">
  <dc:title>Unpublished diagram, 'Extracts relating to some new mechanical inventions' by Baron [Karl Freiherr] von Drais of Mannheim</dc:title>
  <dc:description>Figure showing a triangular structure or frame with parts labelled A, a, B, b, C, and D, with a grid drawn below. There are no captions or labels to suggest the type of structure this diagram represents. The title page suggests that there was text ['extracts'] originally accompanying this figure. A manuscript annotation on the title page also reads '(To be presented to the Society on Thursday)'.

Subject: Scientific Instruments / Engineering</dc:description>
  <dc:date>[1820s]</dc:date>
</rdf:Description>