Curiosities of 19th Century Spain & Areas

I was just working in early Spain when I turned a page, and this 150-year-old piece once again reminded me how gorgeous it is. It's a Spanish revenue stamp covering the 'tax on playing cards'. Without the book for these, a quick check of my Spanish areas shows it to be in the same 'Spanish Arms' keytype used for various 1870s Spanish revenues, Cuban telegraph stamps, and likely other Spanish-area revenues as well.