Add spaces: InsidepenandstripsofivorywithinscriptionbyPrinceFrederik,theHeirPresumptive.Denmark,c.1780.

Answer: Inside pen and strips of ivory with inscription by Prince Frederik, the Heir Presumptive. Denmark, c. 1780.

Add spaces: PlayingonlineGoGoPuzzlePetsgame.ThisisPuzzlegame.Nearbythegame,therearesimilarPuzzlegames.EnjoywithfreeGoGoPuzzlePetsgame

Answer: Playing online Go Go Puzzle Pets game . This is Puzzle game . Nearby the game, there are similar Puzzle games . Enjoy with free Go Go Puzzle Pets game

Add spaces: BuildingyardConstructionsNavalesetIndustriellesdelaMediterranee(C.N.I.M.),France(#1432)

Answer:
Building yard Constructions Navales et Industrielles de la Mediterranee (C.N.I.M.), France (#1432)