Shipwright Archive

I haven't been playing much since the CU came out other than doing SW crafting and Space missions. In other words have been avoiding ground combat for the moment. My question is in 2 parts. 1) have any of you out there aquired any of these and have they made a significant difference in your crafted parts/chassis. 2) does anyone know if a particular type of NPC drops these or is it totally random??? also are these Space loot or even from Ground NPC's.

Grindstone Master SW Scylla - Been at this game for ALONG time and SW since JTL came out but feel like a total NOOB since CU ROFL