Karl Ratzsch’s

320 E. Mason St., Milwaukee, WI 53202

When Otto Hermann opened Karl Ratzsch’s it was called Hermann’s Cafe. Later renamed Old Heidelberg Cafe in 1929 when it relocated to the Colby Abbot Building. Back to the full article.

Karl Ratzsch's Exterior Sign

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Karl Ratzsch's Exterior Sign Photo taken Sept. 15, 2025 by Jeramey Jannene. All Rights Reserved.