Does anyone know where I can find this clutch?

I'm a huge fan of unusual clutches, as you may already know if you've been reading this blog for a while, and when I saw this postage clutch over at Pinterest, I knew I had to have it! But unfortunately I can't seem to find any information on where I can buy this clutch anywhere.

So if you've seen this clutch anywhere, or know how to buy it for any other reason, help a girl out and let me know!