MC68000 microscope photograph and physical tracing

Microscopy: John McMaster. The publisher microscope viewer states:
Copyright 2013 John McMaster, CC BY-NC-SA.
The source does not specify a license version. No version is inferred here.
Source viewer: https://og.kervella.org/m68k/map/
Matching third-preparation photograph:
https://og.kervella.org/m68k/aligned/m68000-m-3.jpg

Extraction/vectorization: Olivier Galibert and Quietust.
Source materials: https://og.kervella.org/m68k/
Pinned extractor: https://github.com/galibert/dietools/tree/6aa18d8dd64f0e235550cf4cc51db4f995b57120

Photograph pixels are loaded from the credited publisher. Atlas overlays
describe approximate source gate extents, including extents shared by multiple
branches. They are not exact individual transistor or contact boundaries.
Physical coordinates use the source preparation and bottom-origin conversion
photo_y = 13999 - physical_y. No optimized diffusion fit is applied.

T1/gate/T2 retain literal source meanings. T1/T2 do not establish fixed
source/drain polarity. Source net indices remain distinct. A shared physical
net does not authorize merging source identities or drawing an observed wire.
The author's virtual VCC connection is model connectivity and is not drawn
as an observed conductor. Source strength values are not verified W/L or
current. The Commons specimen is a separate photograph and mask record.