Anonymous works, photographs, cinematographic works, sound recordings, government works, and works of corporate authorship or of international organizations enter the public domain 60 years after the date on which they were first published, counted from the beginning of the following calendar year (i.e. as of 2024, works published prior to 1 January 1964 are considered public domain).
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Uploaded a work by Anonymous from The sailing vessel traffic on the west coast of India and its future by Vaidya, K.B. Publication date 1945 https://archive.org/details/dli.csl.8506/ with UploadWizard