I was rather proud of finding this as I wasn’t expecting to find a “cithara”, which is: ‘An ancient Greek and Roman stringed instrument similar to the lyre. Also occas. used of other plucked stringed instruments similar in form to, or believed to have derived from, this instrument’s.’ (OED), in SW3!
Day #303 of a 365 project, where the daily pic is informed by the OED word of the day.