Mark et al...
Yes, the late cars have been seen with one of three configurations:
1. No Astro Vent logo on either door glass.
2. Only one window with the Astro Vent logo (drivers or passengers side. Both have been seen.)
3. Both windows with the Astro Vent logo.
My 05D Los Angeles built car also has earlier glass on it (both fronts are "TZ" which is August, 1967, and both rear quarters are NX-10 (January, 1968). It's assumed that both factories had "left-over" glass and had to use them up. They were "supposed" to match the glass (one Astro Vent should have been fired onto a later glass to match the earlier one), but this didn't always happen, hense one with and one without the logo.
Very early and very late cars always seem to have anomolies that defy the normal rules.