This catalog was printed in 1914.  The handwritten notes on various pages, including current prices, were added in the period between 1914 and 1918.

It is noteworthy that the pages of the 1918 catalog that cover the Mikrographe and the Semikrographe, as well as the rattrapante (dedoublante) versions of both models, were updated (overprinted) in 1918 to reflect the issuance of patents covering these models.