Celestial and Terrestrial Globes: Why the difference in dates?

There is commonly a difference between the dates of terrestrial and celestial globe pairings. Globe makers often made celestial models in advance, since the stars and constellations were considered established and unchanging. New lands were constantly being discovered around the world, and terrestrial models were almost always "made to order" later to ensure accuracy.
21-Inch Celestial & Terrestrial Globes by Newton & Son

21-Inch Celestial & Terrestrial Globes by Newton & Son

Exceptional Table Globes by J. G. Doppelmayr

Exceptional Table Globes by J. G. Doppelmayr

Important Pair of 12-Inch Globes by Dudley Adams

Important Pair of 12-Inch Globes by Dudley Adams

John and William Cary Table Globes

John and William Cary Table Globes