Hi, if you are still interested in this I can confirm it is by Erik Hoglund. I acquired the same design yesterday in red-orange, which I suspect has been used as an ashtray. After a lot of searching (where I found your post) I found a reference in the book "Erik Hoglund" by Gunnel Holmer (in Swedish). On page 240 there is a photo of a ?catalogue page that shows Boda "Reliefglas" with 15 different designs, that appear to include the other ones you mentioned. The description translates roughly (via Google translate) as: booklet with 15 designs in various combination possibilities. A new concept in modern arklitektur ... ensamforsaljare. I guess they are a form of glass brick for architectural-type work. If you are still interested I could scan the page and email to you if you wanted to give me your email address. Regards, Andrew