Lego Dacta Letters
Source: http://www.brickset.com.The Lego Group. Lego Education/Dacta. License: All Rights Reserved.
Dacta is the former name of Lego Education, which is part of the Lego Group. The Education sets are geared towards classroom learning. It's nice to see not only the uppercase here, but also lowercase and number & symbol sets. I don't know the source of this version ofFutura. Note the irregular 'Q' in the top image compared to the expected 'Q' in the last image. The difference may be explained by manufacturing — one font used in the illustrated mockup, another on the actual pieces. And based on a small thumbnail image on Brickset, It's possible that the illustration has its roots in a 1976 set.
If you want another reason to long for the past, here's a current Lego Duplo set for learning the alphabet. Don't say I didn't warn you: Play with Letters Set.
Source: http://www.brickset.com.The Lego Group. Lego Education/Dacta. License: All Rights Reserved.
Source: http://www.brickset.com.The Lego Group. Lego Education/Dacta. License: All Rights Reserved.
Source: http://www.brickset.com.The Lego Group. Lego Education/Dacta. License: All Rights Reserved.