you got it!
Well, feck ye' Chris....you cracked it. A chalkboard. A rustic, shabby chic chalkboard. Just like the ones on Etsy.com that cost a fortune and the makers spend ages "distressing" to look old. Mine has been getting distressed for decades! (a bit like me)
I think I'll get into a huff now and take meself and me chalkbaord off to bother the Dublinwaste-rs!