Files from Flylogic:

i4004.jpg ⇒ intel_4004_m0_200x.jpg: Its the exact same die (per saw marks) and the same size. Must also be 200x

i4004b_200x_lg.jpg ⇒ intel_4004b_mz_200x.jpg

Package

Unknown

Die

Text:

intel
TM
71

4004

FF

Note: M0 set was marked 4004, not 4004B. Unclear what it is