1:26 is pretty close to 1:25, and from your Wikipedia link:
1:25 - This scale is also standard in most theatre design models used to represent set designs before being built
There may be some connection there. Here’s a Q&A with Alan Wolfson, the artist who builds them, talking about his other work:
http://www.alanwolfson.net/qanda.htm
And examples of his other work:
