Section of oakwood Product:Greetings card The Salters' Almshouses in Monkwell

The Salters' Almshouses in Monkwell Street

draught and fume excluders

The bridge is decorated with flags and a hot air balloon floats in the sky on the right

The figures on the street include a street seller

Section of oakwood Product:Greetings card The Salters' Almshouses in MonkwellIllustrations accompanying a letter describing Antoni van Leeuwenhoek's microscopical observations, dated 12 January 1680. An English extract of the letter was printed in Philosophical Transactions of the Royal Society, vol 13 (1683), pp. 197 208. The figures show microscopic views of the fibres in a section of oak. Original: pencil on paper. 1680