The Lexington box is based on a surviving example in a private collection. It is the only known cartridge box or pouch directly attributable to the Lexington militia that formed up to oppose British troops on April 19th 1775 and were attacked by them (this date and incident is commonly refered to as the official beginning of the American Revolutionary War). It is a waist box/pouch, not a shoulder pouch, and yet it shares a common design feature with the Concord style pouches in that it too has a leather covered block made of D-sections and with considerable size pouch space hanging below the block, which makes it unique. There is also another surviving pouch that while appearing to be similiar to the Concord style actually has a curved block as if it were meant to be a waist box, yet it has been converted to a shoulder pouch. Thus the design of the Lexington box and the other one is consistant with the construction of shoulder pouches of the same region and era, demonstrating common and reoccuring construction techniques being used in New England in 1775 for both shoulder and waist pouches.
The original Lexington box has the usual D-body construction with no seam welts, and comes with it's surviving waist belt which itself is of very unusual construction. Both ends of it are split into two identical belt ends of about 1 inch wide each and ending in small iron buckles with double tongs (these may be recycled breeches knee-band buckles). The belt's maximum width is about 2 1/2 inches. Both the belt and the waist box are displayed mounted permanently in a box with a picture frame and glass front that dates from the 19th century, and it is believed that it was once on public display in Lexington in the 19th century before being sold privately. Inside the box is a small paper document which reads:
"This bullet bag was taken from old barn in Lexington. Family story say it was used by ancestor on April 19, 1775 the day the British attacked our town."