pair of vintage Niagara Falls “cave of the winds” Postcards

I'm offering two vintage postcards featuring the Cave of the Winds at Niagara Falls. These postcards offer a glimpse into the past with their classic depictions of this iconic natural wonder. One shows the Cave of the Winds in winter, with a person standing near the icy falls. The other is an embossed card. Both are in good condition considering their age, making them a unique addition to any collection. If the ad is up, they're still available!