Look!: What Are the Odds?

My boyfriend found these on Craigslist a few days ago, and said "My grandparents had these same tables!" We started wondering if it was even remotely possible that these are the exact same tables having exchanged owners over the years...

The "two matching walnut-stained coffee tables with unique sailboat design etched in black granite" don't seem like something that would be mass-produced, but you never know. Has anyone seen these before?