<span class="bbc_size" style="font-size: 18pt;"><strong>Rank Structure/Uniforms for the 2260s Era/Alternate Uniforms</strong></span><br/><br/>Please note there are three parts to these uniforms.  The color of the uniform would denote whether an individual was in Command, Operations or Sciences.  Yellow or green was for Command.  Red or brown was for Operations.  Blue was for the Science (including medical).<br/><br/>The cuffs of sleeves would then contain rank:<br/><br/><table class="bbc_table"><tbody><tr><td>Officers</td><td>Enlisted Crew</td></tr><tr><td>(no insignia) Ensign or lower</td><td>(no insignia) Crewman</td></tr><tr><td>(http://i1282.photobucket.com/albums/a533/stuartcollis/Starfleet%20Insignias/LTJG_TOS_zps5c56282f.png) Lieutenant Junior Grade</td><td>(no insignia) Petty Officer Second Class </td></tr><tr><td> (http://i1282.photobucket.com/albums/a533/stuartcollis/Starfleet%20Insignias/LT_TOS_zps74ce132b.png) Lieutenant</td><td> (no insignia) Petty Officer First Class</td></tr><tr><td> (unknown) First Lieutenant </td><td> (no insignia) Chief Petty Officer </td></tr><tr><td> (http://i1282.photobucket.com/albums/a533/stuartcollis/Starfleet%20Insignias/LCDR_TOS_zps33ba55b6.png) Lieutenant Commander</td><td> (no insignia) Senior Chief Petty Officer</td></tr><tr><td> (http://i1282.photobucket.com/albums/a533/stuartcollis/Starfleet%20Insignias/CDR_TOS_zps63e08ca4.png) Commander</td><td> (no insignia) Master Chief Petty Officer </td></tr><tr><td>(http://i1282.photobucket.com/albums/a533/stuartcollis/Starfleet%20Insignias/CAPT_TOS_zpse2e9b148.png) Captain </td><td> (no insignia) Master Chief Petty Officer of Starfleet</td></tr></tbody></table><br/>Alternate uniforms at this time would have ranks on the collar that looked like this (Please note that though it is shown here in green, the insignia is all that is important as color shows division as stated before.):<br/><br/><table class="bbc_table"><tbody><tr><td>Officers</td><td>Enlisted Crew</td></tr><tr><td>(no insignia) Ensign or lower</td><td>(no insignia) Crewman</td></tr><tr><td>(http://i1282.photobucket.com/albums/a533/stuartcollis/Starfleet%20Insignias/2200s_-_LTJG_Command_zps552a83ed.png) Lieutenant Junior Grade</td><td>(no insignia) Petty Officer Second Class </td></tr><tr><td> (http://i1282.photobucket.com/albums/a533/stuartcollis/Starfleet%20Insignias/2200s_-_LT_Command_zpse1ee69c0.png) Lieutenant</td><td> (no insignia) Petty Officer First Class</td></tr><tr><td> (unknown) First Lieutenant </td><td> (no insignia) Chief Petty Officer </td></tr><tr><td> (http://i1282.photobucket.com/albums/a533/stuartcollis/Starfleet%20Insignias/2200s_-_LCDR_Command_zps62229d63.png) Lieutenant Commander</td><td> (no insignia) Senior Chief Petty Officer</td></tr><tr><td> (http://i1282.photobucket.com/albums/a533/stuartcollis/Starfleet%20Insignias/2200s_-_CDR_Command_zps10fe6d89.png) Commander</td><td> (no insignia) Master Chief Petty Officer </td></tr><tr><td>(http://i1282.photobucket.com/albums/a533/stuartcollis/Starfleet%20Insignias/2200s_-_CAPT_Command_zps945ceaff.png) Captain </td><td> (no insignia) Master Chief Petty Officer of Starfleet</td></tr></tbody></table><br/>Then, there were assignment patches that were on the front of the shirt on the left hand side at the chest/heart level.  All officers have the last set of patches, depending on their department.  In TOS, however, this is how the enlisted personnel were identified.  They were as follows:<br/><br/><table class="bbc_table"><tbody><tr><td></td><td>Command</td><td>Operations</td><td>Sciences</td><td>Medical</td></tr><tr><td>Crewman</td><td>(http://i1282.photobucket.com/albums/a533/stuartcollis/Starfleet%20Insignias/2265_-_CrewmanCommand_zps5b81902f.png)</td><td>(http://i1282.photobucket.com/albums/a533/stuartcollis/Starfleet%20Insignias/2265_-_CrewmanOperations_zps7be48864.png)</td><td>(http://i1282.photobucket.com/albums/a533/stuartcollis/Starfleet%20Insignias/2265_-_CrewmanSciences_zpsfd2284d4.png)</td><td>(http://i1282.photobucket.com/albums/a533/stuartcollis/Starfleet%20Insignias/2265_-_CrewmanMedical_zps4a82db13.png)</td></tr><tr><td>Petty Officer Second Class</td><td>(http://i1282.photobucket.com/albums/a533/stuartcollis/Starfleet%20Insignias/2265_-_PO2_Command_zps438cf1ed.png)</td><td>(http://i1282.photobucket.com/albums/a533/stuartcollis/Starfleet%20Insignias/2265_-_PO2_Operations_zps13360c14.png)</td><td>(http://i1282.photobucket.com/albums/a533/stuartcollis/Starfleet%20Insignias/2265_-_PO2_Sciences_zps1abf09af.png)</td><td>(http://i1282.photobucket.com/albums/a533/stuartcollis/Starfleet%20Insignias/2265_-_PO2_Medical_zpsf51543f7.png)</td></tr><tr><td>Petty Officer First Class</td><td>(http://i1282.photobucket.com/albums/a533/stuartcollis/Starfleet%20Insignias/2265_-_PO1_Command_zpsda29a03f.png)</td><td>(http://i1282.photobucket.com/albums/a533/stuartcollis/Starfleet%20Insignias/2265_-_PO1_Operations_zps158ab871.png)</td><td>(http://i1282.photobucket.com/albums/a533/stuartcollis/Starfleet%20Insignias/2265_-_PO1_Sciences_zps143c5732.png)</td><td>(http://i1282.photobucket.com/albums/a533/stuartcollis/Starfleet%20Insignias/2265_-_PO1_Medical_zpsae14717a.png)</td></tr><tr><td>Chief Petty Officer</td><td>(http://i1282.photobucket.com/albums/a533/stuartcollis/Starfleet%20Insignias/2265_-_CPO_Command_zps016ae1e4.png)</td><td>(http://i1282.photobucket.com/albums/a533/stuartcollis/Starfleet%20Insignias/2265_-_CPO_Operations_zps35919f12.png)</td><td>(http://i1282.photobucket.com/albums/a533/stuartcollis/Starfleet%20Insignias/2265_-_CPO_Sciences_zps69272158.png)</td><td>(http://i1282.photobucket.com/albums/a533/stuartcollis/Starfleet%20Insignias/2265_-_CPO_Medical_zpsa82a07c4.png)</td></tr><tr><td>Senior Chief Petty Officer</td><td>(http://i1282.photobucket.com/albums/a533/stuartcollis/Starfleet%20Insignias/2265_-_SCPO_Command_zpsab6ca1f1.png)</td><td>(http://i1282.photobucket.com/albums/a533/stuartcollis/Starfleet%20Insignias/2265_-_SCPO_Operations_zpsef2a3775.png)</td><td>(http://i1282.photobucket.com/albums/a533/stuartcollis/Starfleet%20Insignias/2265_-_SCPO_Sciences_zpsdc3dc5bf.png)</td><td>(http://i1282.photobucket.com/albums/a533/stuartcollis/Starfleet%20Insignias/2265_-_SCPO_Medical_zps29584d25.png)</td></tr><tr><td>Master Chief Petty Officer</td><td>(http://i1282.photobucket.com/albums/a533/stuartcollis/Starfleet%20Insignias/2265_-_MCPO_Command_zps84ca1546.png)</td><td>(http://i1282.photobucket.com/albums/a533/stuartcollis/Starfleet%20Insignias/2265_-_MCPO_Operations_zpsdee19ce3.png)</td><td>(http://i1282.photobucket.com/albums/a533/stuartcollis/Starfleet%20Insignias/2265_-_MCPO_Sciences_zps01970aba.png)</td><td>(http://i1282.photobucket.com/albums/a533/stuartcollis/Starfleet%20Insignias/2265_-_MCPO_Medical_zps1a416cbd.png)</td><td></td></tr><tr><td>Master Chief Petty Officer of Starfleet</td><td>(http://i1282.photobucket.com/albums/a533/stuartcollis/Starfleet%20Insignias/2265_-_MCPOSF_zpsd5a51167.png)</td><td></td><td></td><td></td></tr><tr><td>Officers</td><td>(http://i1282.photobucket.com/albums/a533/stuartcollis/Starfleet%20Insignias/2265_-_ENS_Command_Badge_zps883b132b.png)</td><td>(http://i1282.photobucket.com/albums/a533/stuartcollis/Starfleet%20Insignias/2265_-_ENS_Operations_Badge_zpsa82565a0.png)</td><td>(http://i1282.photobucket.com/albums/a533/stuartcollis/Starfleet%20Insignias/2265_-_ENS_Sciences_Badge_zps607e1603.png)</td><td>(http://i1282.photobucket.com/albums/a533/stuartcollis/Starfleet%20Insignias/2265_-_ENS_Medical_Badge_zps6710d37e.png)</td></tr></tbody></table><br/>Here's a sampling of the uniforms of the era:<br/><br/>(http://i1282.photobucket.com/albums/a533/stuartcollis/uniformspage1epsrev717c_zpse4f1b32f.jpg)