On 2022-Jul-02 12:49:49 +1000, Dave Horsfall <dave(a)horsfall.org> wrote:
the yellow envelopes that came with every roll of Kodak
colour slides
(which no longer seem to be able to be processed; I have a roll with
Halley's Comet on it).
Kodachrome processing ceased in 2010:
https://en.wikipedia.org/wiki/Kodachrome#Cessation_of_processing
--
Peter Jeremy