F. Wyganowski's construction office (Riga): tombstones and building parts.

M. Brauer's marble and tombstones workshop (Jelgava): price list.

Exposition of K. K. Schmidt's Riga cement factory and oil-press (Podrags). Design by architect M. Dohnberg.

K. K. Schmidt's Riga cement factory and oil-press: price-list.

C. Ch. Schmidt's cement and oil factory (Riga): invoice.