X86-Secret : ES Zone
Pentium 4 MS  (Week 40, Year 1999)   
INTEL CONFIDENTIAL - ITVW1 MECH SAMPLE - C9406093 - A-0191 QC82 - D9406093 0209

A Pentium 4 mechanical sample in its final Socket 423 package (with 31mm OLGA chip). This CPU probably doesn't include a die. There is some missing capacitors on the back.