Principia Gravis
From Warhammer 40k - Lexicanum
The Principia Gravis is an Adeptus Mechanicus Explorator Ark.[1]
Once thought to have been lost, it was discovered by the Astral Claws during the wars they waged in the Taninim Crusades. The Chapter later returned it to Cypra Mundi in 714.M37, to great acclaim.[1]
