Starfleet Rank stripes
2265-2270

FAdm Adm VAdm RAdm Cdre Capt
Fleet Admiral Admiral Vice Admiral Rear Admiral Commodore Captain
    n/a
VAdm. Fitzpatrick
TOS The Trouble with Tribbles
 
Cdre. Matthew Decker
TOS The Doomsday Machine
James T. Kirk
Capt. James T. Kirk
This Side of Paradise
Cmdr LtCmdr Lt Lt JG no stripes no stripes
Commander Lieutenant Commander Lieutenant Lieutenant Junior Grade Ensign Enlisted personnel
Spock
Cmdr. Spock
TOS Is  There in Truth No Beauty?
Montgomery Scott
Lt. Cmdr. Scott
TOS The Tholian Web
Uhura
Lt. Uhura
TOS The Trouble with Tribbles

Lt. JG Joe Tormolen
TOS The Naked Time
Pavel Chekov
Ens. Pavel Chekov
TOS The Enterprise Incident
Tina Lawton
PO 3c Tina Lawton
TOS Charlie X

Dress uniforms

Cdre Capt Cmdr LtCmdr
Commodore Captain Commander Lieutenant Commander
Lt Lt JG Ens Enlisted
Lieutenant Lieutenant Junior Grade Ensign

Enlisted personnel