Firehouses in Boston District 7 are: Engine 21; Engine 14, Ladder 4 & the Safety Chief; Engine 23 & Ladder 23; and Engine 17, Ladder 7 and District 7.  Serving the areas of Roxbury and Dorchester District 7 is amongst the busier in Boston for fire duty.  These new limited edition challenge coins are 1 3/4" brass center and nickel plated.  Available for immediate shipment.