Thank you kind folks! I'm grateful for the lifts.

I'm preparing a Crane & Co. paper calling card... any ideas, hints, tips, pointers?

Maybe blank with a border for the handwritten note, or from the examples at
https://www.google.com/search?q=ephemera+"calling+card"+OR+"business+card"+OR+"visiting+card"+OR+"carte+de+visite"&tbm=isch