TEYLINGEN, VAN— Brief d.d. Middelburg 30-8-1840 van de broer van mevr. wed. C. de Raadt-van Teylingen te Zutphen, betr. zijn kinderen en hun karakters. 4°, manuscript, 2 pag.

Letter of patent for André Michel Massonnet from Paris for an invention regarding “certain improvements in alloys of metal and of other substances and also in the application of the same to various usefull purposes”.