Assertion: postage stamp | /r/HasProperty | issued in last few months of 1850
Facets:
value: in 1853/54
type: TEMPORAL
Source sentences:
text: Stamps from Henry Archer's perforation trials were issued in the last few months of 1850; during the 1851 parliamentary session at the House of Commons of the United Kingdom; and finally in 1853/54 after the United Kingdom government paid Archer £4,000 for his machine and the patent.