X86-Secret : ES Zone
Pentium 100 Mhz ES  (Week 51, Year 1994)   
A8050266-100 / I451618Q ES / Q0697 C 0050 / (c) 1993 CONFIDENTIAL

Here is an engineering sample of the Intel P54 (Pentium) clocked at 100 MHz. This ES is a not an early sample, but a validation sample for the C2 stepping. It features a 66 MHz bus and a 1.5x ratio. Intel launched the Pentium 100 MHz on Mar, 7th 1994 and this sample was produced in late '94.