Perpetual plaques include 1st six lines of engraving on main plate. Additional engraving is $.15 per character. Individual Plate Engraving - Pre-Pay for all plates at time of order - $5.00 flat fee for each plate. Pay-As-You-Go - $5.00 each plate plus $.15 per character. Add Logo/Design - $5.00. Custom art work is preferred in vector (.eps, .cdr, .pdf, .ai - must be created in program, not "saved as"). We will accept all high resolution formats; however, if art work is necessary it is $35 an hour with a 1 hour minimum.