How to get Lavos Prime Blueprint in Warframe?

Lavos Prime Blueprint is an item dropped from Void relics.
You can find the list of relics below, and click on the links to see how to get them.

Relics dropping Lavos Prime Blueprint

Other items:
Lavos Prime Chassis Blueprint - Lavos Prime Systems Blueprint - Lavos Prime Neuroptics Blueprint
Lavos Cordatus Helmet Blueprint