Rory Gallagher

From Rory's collection page, he used a 1921 Martin mandolin on songs such as "Going to my HomeTown"

Chris Eccleshall was Rory Gallaghers guitar technician for a while and made him various instruments including the Electric Mandolin.

Donal Gallagher: Rory had written the track ‘Philby’ about the Cold War and was keen to have some mysterious Eastern flavour on the track. The answer lay in having the sitar guitar to get a kind of balalaika effect, but Coral had only made 50 of these guitars and we only knew where 5 of them were. Fortunately Pete Townsend had one so we rented it from him for the sessions, which Rory loved. After the recordings we were due to go on tour and Rory was faced with the problem of duplicating the sound in a live setting. Of course Pete was happy to hire us the same one but it would have been very expensive considering how long Rorys tours were. As it turned out I was in the US for a few days and I picked up a flyer for a guitar trading company in New Jersey. The had a Coral on sale for $1500, which worked out much cheaper than hiring one for a whole tour.

source: http://www.rorygallagher.com/#/archives/guitars/coral_sitar

In the video Rory Gallagher is performing at Rockpalast in 1982, playing the song Philby.