This poster/lithograph shows Vigilant and Valkyrie in a "thrash to windward": in their international race for "The America's Cup" Oct. 7th, 9th. & 13th. 1893.
From Print: New York : Published by Currier & Ives, c1893.
Actual map is much sharper and detailed than the low resolution scanned image used here.
Poster measures approximately 18" by 24" (46 by 61cm).