nanook, i apologize for giving up, the wife says i don't explain things very well.

spencer tracy and kate hepburn were both movie stars in the 30's-50's and made quite afew movies together. in some of these movies he wore a
formal tux with tails. hence they refer to this style as a spencer or a tracy
or a spencer tracy. i hope that helps some, let me know if it doesn't.

slick