Jaguar Mark X was created in 1961.

From NDIAN AFFAIRS: LAWS AND TREATIES Vol. II, Treaties Compiled and edited by Charles J. Kappler. Washington : Government Printing Office, 1904. (http://digital.library.okstate.edu/Kappler/vol2/treaties/del0101.htm) and from a digitized copy of the treaty (http://indiamond6.ulib.iupui.edu/cdm4/document.php?CISOROOT=/ISC&CISOPTR=147&REC=17 William Henry Harrison, [L. S.] Delawares: Anderson, for Hockingpomskon, who is absent, his x mark, [L. S.] Anderson, his x mark, [L. S.] Petchekekapon, his x mark, [L. S.] The Beaver, his x mark, [L. S.] Captain Killbuck, his x mark, [L. S.] Pattawatimas: Winemac, his x mark, [L. S.] Five Medals, by his son, his x mark, [L. S.] Mogawgo, his x mark, [L. S.] Shissahecon, for himself and his brother Tuthinipee, his x mark, [L. S.] Ossmeet, brother to Five Medals, his x mark, [L. S.] Nanousekah, Penamo's son, his x mark, [L. S.] Mosser, his x mark, [L. S.] Chequinimo, his x mark, [L. S.] Sackanackshut, his x mark, [L. S.] Conengee, his x mark, [L. S.] Miamis: Pucan, his x mark, The Owl, his x mark, [L. S.] Meshekenoghqua, or the Little Turtle, his x mark, [L. S.] Wapemangua, or the Loon, his x mark, [L. S.] Silver Heels, his x mark, [L. S.] Shawapenomo, his x mark, Eel Rivers: Charley, his x mark, [L. S.] Sheshangomequah, or Swallow, his x mark, [L. S.] The young Wyandot, a Miami of Elk Hart, his x mark, [L. S.] In presence of— Peter Jones, secretary to the Commissioner, John Johnson, Indian agent, A. Heald, Capt. U. S. Army, A. Edwards, surgeon's mate, Ph. Ostrander, Lieut. U. S. Army, John Shaw, Stephen Johnston, J. Hamilton, sheriff of Dearborn County, Hendrick Aupaumut. William Wells, John Conner, Joseph Barron, Abraham Ash, Sworn Intepreters. Note: [L.S.] indicates that a legal seal was present by the signature of x-mark.

From NDIAN AFFAIRS: LAWS AND TREATIES Vol. II, Treaties Compiled and edited by Charles J. Kappler. Washington : Government Printing Office, 1904. (http://digital.library.okstate.edu/Kappler/vol2/treaties/del0101.htm) and from a digitized copy of the treaty (http://indiamond6.ulib.iupui.edu/cdm4/document.php?CISOROOT=/ISC&CISOPTR=147&REC=17 William Henry Harrison, [L. S.] Delawares: Anderson, for Hockingpomskon, who is absent, his x mark, [L. S.] Anderson, his x mark, [L. S.] Petchekekapon, his x mark, [L. S.] The Beaver, his x mark, [L. S.] Captain Killbuck, his x mark, [L. S.] Pattawatimas: Winemac, his x mark, [L. S.] Five Medals, by his son, his x mark, [L. S.] Mogawgo, his x mark, [L. S.] Shissahecon, for himself and his brother Tuthinipee, his x mark, [L. S.] Ossmeet, brother to Five Medals, his x mark, [L. S.] Nanousekah, Penamo's son, his x mark, [L. S.] Mosser, his x mark, [L. S.] Chequinimo, his x mark, [L. S.] Sackanackshut, his x mark, [L. S.] Conengee, his x mark, [L. S.] Miamis: Pucan, his x mark, The Owl, his x mark, [L. S.] Meshekenoghqua, or the Little Turtle, his x mark, [L. S.] Wapemangua, or the Loon, his x mark, [L. S.] Silver Heels, his x mark, [L. S.] Shawapenomo, his x mark, Eel Rivers: Charley, his x mark, [L. S.] Sheshangomequah, or Swallow, his x mark, [L. S.] The young Wyandot, a Miami of Elk Hart, his x mark, [L. S.] In presence of— Peter Jones, secretary to the Commissioner, John Johnson, Indian agent, A. Heald, Capt. U. S. Army, A. Edwards, surgeon's mate, Ph. Ostrander, Lieut. U. S. Army, John Shaw, Stephen Johnston, J. Hamilton, sheriff of Dearborn County, Hendrick Aupaumut. William Wells, John Conner, Joseph Barron, Abraham Ash, Sworn Intepreters. Note: [L.S.] indicates that a legal seal was present by the signature of x-mark.

A Mark Token is used by "Mark Master Masons" which is a Side Degree of Free Masonry. It is used and given to the newly advanced Freemason during his advancement into the Degree of Mark Master.

the timing mark (z) of injection pump and the mark (z) to cam shaft the other markof cam shaf (y) to the idler geer (y) and the (x) mark of idler to main shaft (x) mark