Industrial Revolutions
Issue Date - August 12, 2021
SG 4555 - Bessemer Process, 1856, 2nd
SG 4556 - Watts Rotative Steam Engine, c.1780, 2nd
SG 4557 - Penydarren Locomotive, 1804, 1st
SG 4558 - Spinning Jenny, 1764, 1st
SG 4559 - Lombes Silk Mill, c.1721, £1.70
SG 4560 - Portland Cement, 1824, £1.70
SG MS4561 - Faraday Generates Electricity, 1831, 2nd
SG MS4561 - Transatlantic Cable, 1858, 1st
SG MS4561 - Deptford Power Station, 1889, £1.70
SG MS4561 - Light Bulb, 1880, £2.55
First Day of Issue Official Covers
