Greetings from Latvia

What does it say about this series that they aren't always even checked properly before going for printing, like here - one of the 'famous Latvians' is listed twice?! Unless I'm very much mistaken, a corrected issue was published later.. I've pretty much given up on trying to get the new issues as well because they all seem to be such hard-to-get countries and I'm not willing to pay ridiculous amounts for mint stamps/extra cards etc. Oh well, it was fun while it lasted. ....and I should still be getting the new special edition Finland card as I managed to arrange a swap for it. :)

 This one is from a swap from two years ago.

I tried to find more information about this apparently very famous Arvīds Blūmentāls but Wikipedia doesn't have any information about them in English. ...and I'm too lazy to comment on anything else. :P