Manufacturers Blocksom & Co Share Email Article Share on LinkedIn Share on X Share on Facebook Blocksom & Co Locations & Contacts PO Box 2007 Michigan City, IN, 46361-8007 219-874-3231 Visit Website Report Inaccuracies See something wrong? If there’s an error on this page, please let us know. Report Report inaccuracies for Blocksom & Co page Optional description of the form for additional information. * Required information Email: Description: * Cancle Submit