Many thanks to debauer for providing the samples!
(Logo) 9110CV 171222 VL16C452-QC 3023B
NETHERLANDS
(Mask IDs) (M) VTI 3023A
16C452
The 82C50 units have:
82C50A (M) VLSI (C) '87
Top metal imaged under Nikon PlanApo 20x/0.75