A vintage 1955 Zippo lighter in the plain brushed silver finish.  4 Dots on each side of the logo, a humped cam spring, and the Pat Pending designation lead me to date this as one of the first made with the new logo in 1955. Everything is in working order.  Cam spring is secure and works the cam well.   Flint Wheel is loose.  I put in a new flint and it sparked on the first turn.   Otherwise untouched.  Some light scratches and normal wear on the case.   Scuffing on the insert as shown.