Quality Manufacturing Since 1926 Custom Architectural Signage M&A is a manufacturer of high quality custom architectural signage. We will work directly from your architects specification or provide creative consulting on design ideas. ADA compliant signs available. Custom Marking Products M&A provides custom stamping products to meet your specialized or unusual requirements. Complete stamping solutions can be designed to your specifications. Specialized Ink Products M&A is your source of highly specialized inks for most stamping and stenciling and coding applications. Mil-Spec and USDA Spec inks are available.