John,
Here are all the articles that have been printed on the Vacuum Wiper in Model A News and The Restorer.
Pluck
VACUUM WINDSHIELD WIPER
A-17508-A, B, C, D, E: Vacuum Windshield Wiper Motor Assembly
“Oiling The Trico Vacuum Wiper Motors”: MAN/28/5/19 (1981)**3, 5
“Overhaul of the Trico Vacuum Wiper Motor”: MAN/34/3/12-13 (1987) **6
“Vacuum Windshield Wipers”: MAN/35/1/5 (1988) **6
“Saving the Trico A-17508-A Wiper Motor”: MAN/47/1/15 (2000)
“Restoring the Trico Vacuum Wiper”: TR/41/1/27 (1996)
“LETTER…Some Restoration Thoughts”: TR/45/4/4 (2000)
“TIP…Trico Vacuum Wiper Rebuilding”: TR/49/2/29 (2004)
“TIP…Slow Vacuum Wiper Fix”: TR/53/4/39 (2008)
A-17544-B: Vacuum windshield wiper tube to windshield header clip
“Vacuum wiper line clips”: MAN/UNKNOWN/p.105/**3