2265-2270 / [TOS] ERA : Uniforms : Page 6 : dress uniform

Scans and screenshots by Janet.  Text - adapted from section sources. Optimum page viewing.

YELLOW ALERT Although the events in [TOS] go up to 2269, when Captain Kirk's 5-year mission ends, the uniform era dealt with is actually up to the moment in 2270 when Starfleet chooses to adopt the Enterprise NCC-1701 emblem for all of Starfleet and to restyle the uniforms.

the following paragraph repeats text that appeared on Page 2 and is here as a reminder DRESS UNIFORM (CAPTAIN'S) The captain's dress uniform is green, and made from a more metallic-looking fabric than the standard tunics even the captain's wrap-arounds. The shirt has a Nehru-style collar and is fastened at the neck and all down the front, and has gold inset piping. Any decorations and awards are usually worn with dress uniform, and award ribbons are displayed on the left breast. 2266-70: .... Decorations and awards. DRESS UNIFORM (SCIENCE DIVISION) The blue-coloured dress uniform, reserved for official functions, is worn by science officers. It has the same collar and fastening as the captain's dress uniform, but it does not have the braid around the shoulders. Officers are permitted to customise dress uniforms to honour their culture.

  
[TOS: Season 1: Court Martial]
dress uniform, worn at Kirk's court martial by the judges, and close-up of Commodore Stone (one of the judges); medals are also worn;
the different colour tunics are the same colour as the wearer's department and thus the same colour as their standard uniform shirt

[TOS: Season 1: Court Martial] dress uniform: Kirk and, seated Mr Spock and Dr McCoy; note McCoy's slightly different dress uniform (medical division); decorations and awards are worn - drawings of decorations and awards

court clerk and two of the judges [TOS: Court Martial]

prosecutor and Spock as a witness [TOS: Court Martial]

surprisingly, crewmen do not wear dress uniform to attend a wedding; this is unsurprising as it would mean a lot of sewing by the show's wardrobe department [TOS: Season 1: Balance Of Terror]

dress uniform is worn to diplomatic functions [TOS: Season 2: Journey To Babel]

[TOS: Season 2: Journey To Babel] The 2nd and 3rd screenshots show the back of dress uniform; note the different styling over the fastening that runs down the middle of the front of Dr McCoy's medical dress uniform