Workbook for Shorthand Excellence, from the Civil Service Commission, 1971: pdf file
This refresher course was amongst the files I found earlier today: http://www.eric.ed.gov:80/ERICDocs/data/ericdocs2sql/content_storage_01/0000019b/80/37/86/90.pdf I’ll be working my way through this one, too! (by Shorthand-learner for everyone)