From a roll of Kodachrome II developed as a black and white slide.
Kodachrome can be processed as a black and white film, now that colour processing at Dwayne's has (hopefully temporarily) ended.
It is basically a multi layer black and white film which had the colours added during processing.
There are two ways to do this. It can be processed as black and white slide or negative.
For a black and white negative, put it through the normal black and white process with D-76 as the developer, a hardening fixer and a hypo eliminator. Do not reuse the chemicals. You will find the film is coated with a heavy Rem-Jet backing, whick can be removed using a solution of Washing Soda and water.
For a black and white slide, use a reversal kit, such as the Foma R-100 kit or the Kodak T-MAX Direct Positive Kit. Use a hardening fixer and remove the remjet as above.
For now, these are the best ways to process Kodachrome until colour processing makes a comeback.