Peter Tosh is a Jamaican reggae artist that was an original member of The Wailers, alongside Bob Marley and Bunny Wailer among others. He had a successful solo career after the band ended, but nothing quite like Marley did.
This tee is from his 1982 - 1983 tour, promoting his album Wanted Dread or alive. The side seam has split as shown, and has a cut tag, but fits about a medium.
Measurements are:
pit to pit - 20”
length - 26”