OmniKey Ultra

(Silver colored sticker, blue text)
Vendor ID: 777
Part #: 560,0020
Lot #: not listed
Serial Number: 0338x-0E
FCC ID: GT6OMNIKEYULTRA
Date dial on top case: 90-02-27
Number on bottom (green) PCB: 900125-rev 0.0 OMNIKEY ULTRA/PLUS/102

Brown (bottom case) PCB: PN 890717-00 rev. 0.1
OMNIKEY PLUS/102 CONTROLLER
Northgate Computer Sys., Inc. Patents Pending, 1989

Chip bottom: 
Blank 

Chip top: 
White label: 6.03F
S27C64A
-15 FA

Had to skip ID check in XGecu.
Manufacturer is Philips Components-Signetics.