German Protestant theologian (1839–1908) who became known as one of the most influential representatives of liberal theology. Vintage matte-finish 3.75 x 5.5 portrait of Pfleiderer engaged in deep thought affixed to its original 6 x 8 Notman photographer’s mount, signed on the reverse of the mount in black ink, and dated October 28, 1907. In fine condition, with a noticeable diagonal crease to the upper left of the mount. RR Auction COA.