Mark Twain Played A Martin

I've seen this before, but I thought it was kind of interesting;

Mark Twain, one of America's greatest literary legends, was a passionate guitarist and singer during the 19th century's Romantic era [...}

Twain obtained this Martin guitar, style 2 1/2-17, shortly after the outbreak of the Civil War in 1861. It was built by C.F. Martin Sr. in 1835, the same year that Twain was born[...]