1951 Gillette Super Speed razor in near mint condition with original red plastic box.  
The razor is date coded W-1 which is the first official year and quarter for Gillette to use the date code system.
The red plastic box has no cracks.
It also comes with the original blue plastic 10 pack of blades.  There is one original blade remaining.
the rarest piece is the little red cardboard insert that goes in the blade holder compartment.  These came with the 10 pack of blades, but in order to fit one of the blue 20 packs in the blade compartment, the little red insert was to be removed.  This one is still in place.