On 2022-Jul-02 12:49:49 +1000, Dave Horsfall 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