This item is a letter book related to carpentry, contracting and building activities in the Colborne, Ontario, area. It contains some interesting material on house construction in terms of methods and materials. It also contains some information on Colborne area churches. The letter book has a partial index to the correspondence of William Ives.

This item is an account book of a business run by R. Waller which appears to be either carpentry or wagon-making. The book is dated June 1886 to June 1919.

File consists of aerial photographs taken of the Nassau (Symons) Campus site either right before construction started or taken during the very early stages of construction. The photographs mostly come up the river, starting at the south end near the Peterborough Rowing Club House and Stanley Adamson Powerhouse, and then moving north towards the campus location. Early versions of Champlain College, Lady Eaton College, Bata Library, and Science Complex can be seen, as well as an unfinished version of Faryon Bridge.