Impressive results! Even where the original is distorted and mixed with other videos it's detected. I take it you use a different technique than spotter?
This is purely anecdotal, but I live in Florence and know a couple of people from the "old-money" families and they are not rich by todays standard. They make a modest living renting out and managing the properties handed down through the generations and have to be frugal to make it work.
Also, you should be very sceptical of any study made using Italian tax records as a data source :D
If anyone is looking for these as usable fonts I found this french designer Gilles Le Corre - http://www.gilleslecorre.com/pages/fonts.html - who makes a lot of fonts based of old manuscripts and books.
Btw, if anyone is wondering why the workers run so slow when in a background tab, it is because most browsers throttle setTimeout's to run max once a second when the browser window looses focus. (web workers does not have this problem but for the demo i figured it would be fun to watch the workers do their thing)
btw, you have a typo in the learn more section, the readme link ends in .mg