As Wallace accompanied his mother in her shopping spree, he suggested some solidly made artifacts for her.
He also had some time to observe his whole surroundings and take a look with all the Mana Artifacts displayed. He was interested in quite a few of them.
He also scanned the whole Veritas Airship and found the unusual engine powering the ship.
'That's another interesting way to harness the Mana as a power source...' Wallace thought upon checking the engines they were using to run the airship. Unlike his CMR, it doesn't have a grand magic structure that enables it to continuously provide an almost unlimited power supply. It was instead using the mana to control the wind elements for continuous float function.