Willie Nelson

According to Hard Rock Cafe website, Nelson gave this guitar away, for Hard Rock Cafe memorabillia.

Willie Nelson bought Trigger sight unseen in 1969 from Shot Jackson in Nashville according to this article from Texas Monthly.

"The guitar—a Martin N-20 classical, serial number 242830—was a gorgeous instrument, with a warm, sweet tone and a pretty “mellow yellow” coloring. The top was made of Sitka spruce, which came from the Pacific Northwest; the back and sides were Brazilian rosewood. The fretboard and bridge were ebony from Africa, and the neck was mahogany from the Amazon basin. The brass tuning pegs came from Germany."

Willie has said, “Roy Rogers had a horse named Trigger. I figured, this is my horse!”

The item can be seen on the images

Willie has been seen using this guitar live.

According to http://www.gantamps.com/month.htm:

The highest profile user of this amp is Willie Nelson. Willie has a Baldwin pickup on his Martin that matches this amp. I found near mint example with cover and footswitch in rural TN. Great sounding amp.

Willie Nelson is shown using the Audix OM5 in this picture and is confirmed through Audix's site.

In this photo, Nelson is seen singing into Shure SM58, although he usually prefers Audix microphones.

Nelson can be seen in this photo playing a Fender Precision Bass.

According to La Bella's website, Willie Nelson uses La Bella 830 Folksinger strings.