D.W. Van Riper, 1870, 6 September (patent), Patent no.: 107,129, D.W. Riper, Photographic Background, Patent illustration, US Patent Office, LL/101078

Theophile Ernest Enjalbert (patentee), 1890, 16 September, Patent illustration from the US Patent of Theophile Ernest Enjalbert "Apparatus for Automatic Photography." [2 of 6], Patent illustration, US Patent Office, LL/91912

William A. Pratt, 1846, 14 March, Improvement in Coloring Daguerreotype-Pictues [US Letters Patent No. 4,423], Patent, US Patent Office, LL/99287

1918, 15 October (patent), Patent No: 1,281,746 A. Allen, J.J. Murphy & H.A. Willard Multicolor Stereoscopic Device, Patent illustration, US Patent Office, LL/101066

I.W. Taber & T.H. Boyd, 1875, 19 January, Photographic-Plate Holders (US Patent No. 158,872), Patent illustration, US Patent Office, LL/65710

Burt H. Slusser & Lorenzo Pearson (Send Bend, Indiana, patentees), 1873, 17 March (filed), Design for Picture-Frame (US Patent Design No: 6,909), Patent, US Patent Office, LL/82579

1918, 15 October (patent), Patent No: 1,281,746 A. Allen, J.J. Murphy & H.A. Willard Multicolor Stereoscopic Device, Patent illustration, US Patent Office, LL/101065

1888, 10 February, Patent No: 362,390 Morgan's Improved Multiplex Photographic Background Frame (detail), Patent illustration, US Patent Office, LL/101050

I.W. Taber & T.H. Boyd, 1875, 23 November, Photographic Background (US Patent No: 170,204), Patent illustration, US Patent Office, LL/65711

Laura J. Miranti (inventor), 2008, 16 May, Patent illustration for Laura J. Miranti, "Board book photo album" (USA, US20090284002A1), Patent illustration, US Patent Office, LL/82825

S.M. Williams & H.M. Williams (patentees), 1871, 25 April (patent), Improvement in Spinning-Machines (US Patent No. 114,074), Patent illustration, US Patent Office, LL/86013

Theophile Ernest Enjalbert (patentee), 1890, 16 September, Patent illustration from the US Patent of Theophile Ernest Enjalbert "Apparatus for Automatic Photography." [6 of 6], Patent illustration, US Patent Office, LL/91916

1933, 17 July (filed), Patent No: 1,943,173 G.W. Ford Production of Distorted Photographs, Patent illustration, US Patent Office, LL/101052

1933, 17 July (filed), Patent No: 1,943,173 G.W. Ford Production of Distorted Photographs, Patent illustration, US Patent Office, LL/101053

Theophile Ernest Enjalbert (patentee), 1890, 16 September, Patent illustration from the US Patent of Theophile Ernest Enjalbert "Apparatus for Automatic Photography." [1 of 6], Patent illustration, US Patent Office, LL/91911

Theophile Ernest Enjalbert (patentee), 1890, 16 September, Patent illustration from the US Patent of Theophile Ernest Enjalbert "Apparatus for Automatic Photography." [3 of 6], Patent illustration, US Patent Office, LL/91913

1889, 15 October, Patent No: 412,953 H.N. Gale Mount for Photographs, Patent illustration, US Patent Office, LL/101051

2015, Patent No. US9910286B2 Twinscope 3-D viewer - Inventor: Colleen Woolpert, Patent illustration, US Patent Office, LL/106349

2015, Patent No. US9910286B2 Twinscope 3-D viewer - Inventor: Colleen Woolpert, Patent illustration, US Patent Office, LL/106350

Christian C. Musselman (patentee), 1867, 21 May (patent), Patent illustration for "C.C. Musselmam - Combined press for cheese and for other purposes" (No. 64,998), Patent illustration, US Patent Office, LL/121765

Theophile Ernest Enjalbert (patentee), 1890, 16 September, Patent illustration from the US Patent of Theophile Ernest Enjalbert "Apparatus for Automatic Photography." [4 of 6], Patent illustration, US Patent Office, LL/91914

Laura J. Miranti (inventor), 2008, 16 May, Patent illustration for Laura J. Miranti, "Board book photo album" (USA, US20090284002A1), Patent illustration, US Patent Office, LL/82822

Theophile Ernest Enjalbert (patentee), 1890, 16 September, Patent illustration from the US Patent of Theophile Ernest Enjalbert "Apparatus for Automatic Photography." [5 of 6], Patent illustration, US Patent Office, LL/91915

2015, Patent No. US9910286B2 Twinscope 3-D viewer - Inventor: Colleen Woolpert, Patent illustration, US Patent Office, LL/106347

1875, 24 August, Patent No: 166,492 L.D. Sibley Stereo Viewer, Patent illustration, US Patent Office, LL/101061

F.R. Grumel (Switzerland, patentee), n.d., Patent illustration for F.R. Grumel "Photograph Album" (USA, No. 1,283, 32,287), Patent illustration, US Patent Office, LL/82821

1865, 17 October (patent), Charles Robinson, Springfield, Mass. - Apparatus for Preserving and Exhibiting Photographic Pictures., Patent illustration, US Patent Office, LL/97766

1865, 17 October (patent), Charles Robinson, Springfield, Mass. - Apparatus for Preserving and Exhibiting Photographic Pictures., Patent illustration, US Patent Office, LL/97765

R.W. Potter (patentee), 1865, 7 March, Picture-Card Frame (US Patent No: 46,699), Patent illustration, US Patent Office, LL/79486

Laura J. Miranti (inventor), 2008, 16 May, Patent illustration for Laura J. Miranti, "Board book photo album" (USA, US20090284002A1), Patent illustration, US Patent Office, LL/82824

Samuel Peck (patentee, New Haven, Connecticut), 1854, 3 October, Patent illustration for S. Peck, "Making Photographic Picture Cases" (US11758A), Patent illustration, US Patent Office, LL/82859

Theophile Ernest Enjalbert (patentee), 1890, 16 September, Page detail from the US Patent of Theophile Ernest Enjalbert "Apparatus for Automatic Photography.", Patent, US Patent Office, LL/91910

2015, Patent No. US9910286B2 Twinscope 3-D viewer - Inventor: Colleen Woolpert, Patent illustration, US Patent Office, LL/106348

R.D. Gray (Patentee), 1886, 27 July (application granted / publication), Portable Photographic Camera (US Patent No. US346199A) - Sheet 1 of 2, Patent illustration, US Patent Office, LL/113565

D.W. Van Riper, 1870, 6 September (patent), Patent no.: 107,129, D.W. Riper, Photographic Background, Patent illustration, US Patent Office, LL/101077

Laura J. Miranti (inventor), 2008, 16 May, Patent illustration for Laura J. Miranti, "Board book photo album" (USA, US20090284002A1), Patent illustration, US Patent Office, LL/82823

Steven Sasson (Kodak, patentee), 1977, 20 May, Patent illustration for "Electronic Still Camera" (US, 4,131,919), Patent illustration, US Patent Office, LL/90214

Steven Sasson (Kodak, patentee), 1977, 20 May, Patent illustration for "Electronic Still Camera" (US, 4,131,919), Patent illustration, US Patent Office, LL/90213

R.D. Gray (Patentee), 1886, 27 July (application granted / publication), Portable Photographic Camera (US Patent No. US346199A) - Sheet 2 of 2, Patent illustration, US Patent Office, LL/113566