I'm new here and this is my first post, so be gentle.
I thought I would start my posting here with a question, though it's not a question about a twisty puzzle. I picked up a Soma cube at an estate sale for .25 cents, but it's blue. Every other Soma cube I've ever seen is red. Does this make it different somehow? Is it more rare? The booklet says it was made in 1969 so it was made in the same year as the red version. I've included a picture of the puzzle for your consideration. Finding any info on the Soma cube has been difficult so any insight would be wonderful.