A guildie pointed out that Slothfurnace is one of the designers' nicknames, and the 1976 date is his birthday. I've emailed the fellow to ask about the 1977 https://www.facebook.com/Slothfurnace?sk=info

Found these in Aurebesh font in with a bunch of miscellaneous tech chatter: 06/28/1976 11/16/1977 Do these have some specific significance relating to Star Wars? I googled and wikied to no avail. "ALL SYSTEMS ACTIVE, RECHARGE POWER-CELL 1138 AT FULL POWER PROCEED AFTER SHUT-DOWN, WILL PROCEED AS SCHEDULED" (and) "FUEL SYSTEM MONITORING HOLONET UPDATE TEST STANDBY - /// -SLOTHFURNACE DELTA SEVEN ACTIVATED ONLY /// TEN SIXTEEN /// RADAR SCAN ALL SYSTEMS ACTIVE, RECHARGE PENDING APPROVAL, REPORT NUMBER 0628197611161977 WILL PROCEED AS SCHEDULED ... ,;:! already added the THX-1138 reference to Wookieepedia. ...Gretchen, Smuggler of Saga, Sanctum of the Exalted