Rare Edward VII Post Box c.1901-1910 by Andrew HandysideA rare Edward VII Post Box by makers Andrew Handyside of Derby c. 1901 1910. The Handyside foundry of Derby was originally known as the Britannia Works, Andrew Handyside bought the Britannia Iron Works in 1848, and manufactured several ornamental vases in classical purity, form and ornament. Receiving distinctions at the Great Exhibition in 1850, the quality of their casts were exceptional. It came as no surprise that they were contacted by Royal Mail