“The last time I saw one for sale on Ebay, somebody wanted $300 for it”: Session ace Justin Ostrander on the sought-after pill bottle slide used by Duane Allman and Derek Trucks – and how he got one for free

Duane Allman of American rock group The Allman Brothers Band performs at the last night at Fillmore East, a nightclub on Second Avenue, New York City, before the closing of the venue, 27th June 1971.

First-call Nashville studio guitar ace, Justin Ostrander, has had his fair share of anecdotes. He has, after all, featured on over 20 number-one hit country records, with his recording credits including Steven Tyler, Cody Johnson, Luke Bryan, and David Lee Murphy, to name a mere few.

Being a busy session guitarist means keeping an eye out for guitars and accessories that can give you an edge over other players and help you land the gig – and, in Ostrander's case, one of his trump cards is a Coricidin bottle slide...