The FreeHand Zero is the production model designed to replace and improve upon the original cult classic, the FreeHand. Very similar in shape, with recessed stickers and additional spacers. It also came standard with 3 FreeHand Counterweights, including one from a set of 6 collectible character counterweights.
These are unusual solid colors. Unsure if they were modified by switching caps, or a special release of some kind. Often the unusual colors and combinations were special orders, special releases, or for special events. If you know more history on the solid color Zeros like these, please let the museum know.