An Anger Greater Than Mine - S4-E1
Factual error: Diego's straight razor has a bright blue plastic handle. (00:08:00)
The New Lion of Sonora - S4-E14
Factual error: In the 1870s, poker chips were made of wood and either branded or painted with denominational values. But the brightly colored chips on General Casados' table in this episode are very obviously made of plastic. (00:38:30)