How to get Harrow Prime Blueprint in Warframe?

Harrow 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 Harrow Prime Blueprint

Other items:
Harrow Chassis Blueprint - Harrow Suffragan Helmet Blueprint - Harrow Prime Chassis Blueprint
Harrow Prime Neuroptics Blueprint - Harrow Prime Systems Blueprint - Harrow Neuroptics Blueprint