In the early 1960's, the Deluxe Reading Group, located in Elisabeth, New Jersey, originally produced toys that were sold exclusively to grocery stores. The company officially entered the toy market in 1964 with a line of toys called "Topper". Due to the success of the line the company quickly adopted the name and was known thereafter as the Topper Toy Company. Among some of the better known products they produced at the world's largest toy plant:

Secret Sam Spy Toys

Johnny Eagle Guns

Penny Brite Doll

The Ding-A-Lings

Johnny Lightning

Suzy Homemaker Line of Appliances

Topper Tigers Zoomer Boomers

Topper continued to produce sophisticated gun sets and high quality toys throughout the 60's. If anyone can provide more information I would be greatly appreciative. Detailed history of the company's eventual demise can be found here.