On: 1960s Kodachrome photos of London’s East End

[gunzel]

Unlikely, Kodachrome larger than 35mm was dead after the mid 1950's, there was a brief revival of medium format in the 1980's, but it didn't last long. I suspect the format might be more driven by the format of the book.

[eveningcoffee → gunzel]

So more likely crops made from 35mm slides?