![](https://coimages.sciencemuseumgroup.org.uk/408/large_thumbnail_1982_0339.jpg)
'Dr Syntax and his wife making an experiment in pneumatics', print, London, England, 1820
1820
1820
2000-100 BCE
1893-4
1825
1825
1863-7
1990-96
1823-1825
1821
1820
1824
1821
circa 1821-1825
1822
4000-2001 BCE
1705-1737
1823
1824
1772 (original); 1919 (model)
1819
1823-1825
1775-1799 (original); 1900-1907 (model)
1821
1821
1823
1819
1821
1821
1819
1820
1821-1825
1824
1819
1820
1825
1821
1825
1823
1819
1825; 1910
1824
1824
1824
1822
1822
1822
1825
1821
1823
30 CE