These are Lucchese Classic Boots, made of goatskin. These boots retail for a huge sum; I found an almost-new pair on eBay for 20% of the price of a new pair.
They are standard 13" tall, and have a cowboy walking heel. They are shiny and look great with dress clothes. The only trouble is that the boot shafts are more narrow than my other Lucchese Classic boots, so I had to stretch them so they would be comfortable to wear all day at the office.
I have similar pairs of these dress boots in other colors, too.