N.B.C.O. Check tag - Research points to have originated from the National Biscuit Company, however not 100% sure that is the case.
• Round brass industrial check tag
• Marked N.B.C.O. and number 186
• Approximate diameter: 1-5/8 inches
• Brass or brass-alloy construction
• Integral loop at top for suspension
• Plain reverse with no additional markings
• Numbered for internal identification or control use
• Associated with industrial or factory operations
• Style consistent with early 20th century manufacturing
• Surface wear and patina consistent with age and use