Star Trek Discovery: Every Easter Egg & Hidden Reference From 'That Hope Is You'

The backpack of the Red Angel suit apparently carried a Starfleet survival pack containing a tricorder, emergency rations, a phaser, and Michael's Starfleet "Delta shield"... all considered antiques now.

While fans have colloquially been referring to the Starfleet insignia as a "Delta shield" for decades, this is the first spoken reference to the iconic logo by that name.

Michael steadies herself by reminding herself of her position in Starfleet and recites her serial number, SC0064-0974SHN. We previously learned that Captain Philippa Georgiou's Starfleet serial number was SC0025-0128SHN. "SHN" likely indicates that both officers were stationed aboard the USS Shenzhou, though that's kind of an odd system given starship assignments change over the course of an officer's career and serial numbers clearly don't.