Forbidden Lore (Archaotech) could be rolled in this case, and the Common Lore (Tech) could provide some answers as well. The automatic result was easy enough to figure out just having the skill, but further information should be available based on the roll. Common Lore on Machine Cult or the Forbidden Lore Adeptus Mechanicus may be attempted if you choose but the tech-knowledges could prove more useful in this case than knowledge of the organisation usually involved with tech (though a result might still say something).