Applied Statistical Decision Theory, Raiffa & Schlaifer 1961 (not to be confused with their 1995 or 1959 decision theory textbooks).

Not on Libgen, Google Books, Google Scholar, the Chinese library site, or in any of the Google hits I found despite all the book review PDFs. I found a table of contents for it, and googled some chapter titles in quotes, but only turned up the same table of contents, so it really doesn't seem to be online in the clear. Betawolf discovered that an online copy does seem to exist at HathiTrust, which seems to think that the book is somehow in the public domain as unlikely as that may sound, and can be downloaded by people at a variety of institutions such as UMich, UWash, etc, but in this case, my UWash proxy doesn't work (it gets me IP-based access to stuff, but not account-login-based access, which HathiTrust seems to be.) Can anyone download it? (EDIT: the 1-page-at-a-time PDF download does work so I am scripting that right now as for i in {1..394}; do sleep 60s; wget "<http://babel.hathitrust.org/cgi/imgsrv/download/pdf?id=mdp.39015022416351;orient=0;size=100;seq=$i;attachment=0>" -O $i.pdf; done, but if someone can get the whole PDF, that'd be better since then I know nothing was left out and all the metadata will be intact.)

If not, I will buy a used copy ($16-25 on Amazon & AbeBooks) and try out 1DollarScan.

On a historical note, besides compiling many results and being one of the key texts of the 1960s Bayesian revolution, apparently this is the book which introduced the general concept of conjugate distributions into Bayesian statistics, which I had always assumed had been introduced by Laplace or someone early on like that since they are so critical to pre-MCMC analyses.