Scope and Contents This collection is made up of blueprints from building structures, additions, and alterations that have moved onto microfilm and were created by the Kalamazoo based architectural firm of Diekema and Hamann Architecture and Engineering. The collection was donated by former Diekema and Hamann employee, Richard Cole. Diekema and Hamann was founded in 1919 and is still providing architectural services today. The collection is not complete with every blueprint they ever produced, but...