That's a great addition to your collection, Scott!
The Model 1572E was sold from 1987 to c.1992 through different sources and with upgrades—including door-to-door, premium store, catalog, warehouse club & show—in different color schemes and model names besides your Special Edition, including:
-Discovery II in light sand gray & jade like other Electrolux USA/Canada cleaners made from 1986-87 (earlier successive model numbers were 1500 & 1500C reflecting upgrades)
-Discovery Plus same as the II with onboard attachment caddy
-Discovery III in light sand gray & taupe like other Electrolux USA/Canada cleaners made from 1987-88 (with hose cord port for Sidekick
-Discovery Advantage in light sand gray & navy like other Electrolux USA/Canada cleaners made from 1988-95 with 8.5A motor
-Regency Series in light sand gray & regatta blue (same cleaner line as the Special Editions until later when one new model tank was offered instead of the previous two)
Incidentally, I'm thinking that there was initially a limited production of a "Discovery Model 1572", because of the "II" and the "E" suffix in the model number, which Electrolux used to indicate 'enhanced'.
The Special Edition, if I recall, was part of the show line for trade shows & fairs. It underwent several changes over the course of its run from c.1988 to c.1992, including the nozzle base (akin to pn 6B or 7B)—yours is the 6B, 8.1A or 8.5A (HP) motors, ponytail-mount cord attachment in handle grip or rear handle attachment, and the slide or rocker switches. As far as I know no version was equipped with a bag capacity indicator on the top like the others. This allowed for a lower price point (there may also have been other reasons for this such as a 20-ft. cord versus a 25-ft. cord). The original handles were burgundy like yours. Replacements, either due to the recall of the ponytail connection or other reason, were light gray. Also, does yours have a red reset button on the back? I don't think the early 1572Es did.
Beyond the usual vacuum cleaner maintenance, special considerations for Electrolux L-shaped uprights are to check the accordion duct for cracks and to lubricate the wheel shaft and detents (vertical hold clips).
Longtime Electrolux salesman, John Anderson (tig21er) posted the Special Edition brochure in thread 23578. The only cleaner of the line not shown is the Model 1623 non-automatic tank.
