SCG4807 - Great Britain 1854–1857 Penny Red (Plate Issue) – “KF” Corner Letters, London Numeral Cancel 466This is a classic Great Britain Penny Red, issued between 1854 and 1857, bearing corner letters KF. The stamp depicts the profile of Queen Victoria in a finely engraved design printed in red. It features a perforated issue from Somerset House, part of the famous transitional period after the Penny Black. The cancellation is a bold London numeral obliterator 466, tying it to its postal history use. Such early Penny Reds remain an essential foundation