Hand-Coating vs. Vacuum-Forming Technology
The globes, which are made exclusively of acrylic, are manufactured as two hemispheres. They are then permanently joined together at the equator.
This proven technique has been used by COLUMBUS since 1965 with the "Duplex". At that time, it was a huge development step towards mass production.
Hand-blown crystal glass spheres
Traditions are preserved. Transcending generations, the hand-blown crystal glass balls give your globe a special value and feel. Even after decades, crystal glass retains its initial radiance, far superior to acrylic glass.
Momentarily cheaper to purchase, acrylic glass naturally becomes blind over the decades.
Do not worry about the fragility of crystal glass balls. With a massive wall thickness of several millimeters, this ball is extremely stable. More stable than a comparable acrylic glass ball.
Furthermore, our crystal glass balls can be re-covered in a few years with another more current card image.
Right now we are covering decades old COLUMBUS globes with the latest digital map technology and not only the owners are enjoying this great upgrade option for their decades old companion.