Joseph Martin Kronheim

Kronheim's chief innovation in the field was the use of zinc instead of wood blocks, which reduced the amount of time needed to complete prints, but resulted in a less shiny finish.

[3] By 1855, thanks in large part to the firm's use of zinc blocks, Kronheim & Co. had produced over 1000 different prints, including some for the 1855 Paris Exhibition.

This immense output has led some critics (such as Courtney Lewis) to assert that his firm was more concerned with quantity than quality.

Others, such as author Mike Martin, argue that Kronheim simply preferred a larger subject variety.

[5] Kronheim is best known for his set of four large coaching scene prints, entitled Spring, Summer, Autumn and Winter.