Important French philosopher, mathematician, and writer (1798-1857) who formulated the doctrine of positivism, is often regarded as the first philosopher of science, and contributed to the development of sociology as a discipline. Extremely rare ALS in French, one page, 3.25 x 4.25, November 7, 1850. Untranslated handwritten letter by August Comte. In fine condition.
This item is Pre-Certified by PSA/DNA
Buy a third-party letter of authenticity for
(inquire for price)
*This item has been pre-certified by a trusted third-party authentication service, and by placing a bid on this item, you agree to accept the opinion of this authentication service. If you wish to have an opinion rendered by a different authenticator of your choosing, you must do so prior to your placing of any bid. RR Auction is not responsible for differing opinions submitted 30 days after the date of the sale.
We use cookies on this site to improve your experience. By using this site, you accept our use of cookies. To learn more, please see our Privacy Policy.
