A few nice image share images I found:
(animated stereo) Riding a bucking bronco, 1904
Image by Thiophene_Guy
To see the small animated version (455 x 476) scroll down to the first comment; to see the large (650 x 680) view original size.
The purpose here is not to duplicate the original image, from the Library of Congress website, but to generate a downloadable animated gif to assist viewing and presentation.
The library of congress offers a multitude of historical images online, many needing no license to redistribute. The original 1904 Underwood & Underwood stereoview is titled The "strenuous" life of the cowboy - breaking a bucking bronco, Wyoming. No known restrictions on publication. Library of Congress digital ID: hdl.loc.gov/loc.pnp/cph.3b04626
Image rotations, resizing, alignment, and animated gif generation done with StereoPhotoMaker, a freeware program by Masuji Suto & David Sykes.
(animated stereo) Diving during the Gilded Age, 1892
Image by Thiophene_Guy
To see the animated version scroll down to the first comment or view original size (click all sizes).
The Library of Congress website offers a multitude of historical images, many with no know restrictions on use. This 1892 J. S. Johnston stereograph is titled [Woman diving from pier].
Copyright
The purpose here is not to duplicate the original image, from the Library of Congress website, but to generate a downloadable animated gif to assist viewing and presentation. The original image has no known restrictions on use. Library of Congress digital ID: hdl.loc.gov/loc.pnp/cph.3b26898
Technical details
The digital image was rotated until level (arbitrary) and the borders were cropped. Subsequent image rotations, resizing, alignment, and animated gif generation done with StereoPhotoMaker, a freeware program by Masuji Suto & David Sykes.