Tom Hering
The "brown box" was the first release, a new tool, while the "blue box" was the second release, with a new box and a new part. Note the product numbers. The "brown box" was GC 300:149 and the "blue box" was GC 300:200. These indicate, respectively, "Gold Cup (series) #300 MSRP $1.49" and "Gold Cup (series) #300 MSRP $2.00." The new part included with "blue box" GC 300:200 was a small sheet of self-adhesive chrome foil ("included in this kit - chrome trim" is stated on the box).