Since before I was born a Creda branded version of this dryer has been passed around within our family, to whoever happens to need it at the time. Originally belonged to my grandparents, then it moved to an aunt's house in the early 80s. Ten years later it went to a cousin who was setting up home, after which it went to another aunt who as far as I'm aware still uses it to supplement her washer-dryer. So it has definitely earned its keep.
I remember it had a clockwork timer that ticked away rhythmically during the drying cycle, and a simple rocker switch for the heat selections. Also a metal lint screen cover that was usually still red hot when you tried to remove it!
As far Jackson, that name reappeared in the late 90s I think, on a BOL "budget" range of Creda appliances. Single cavity cooker, basic uni-directional dryer and a matching washer that was virtually identical to the Hotpoint First Edition WM50 series. Quality seemed to be on par with other Hotpoint/Creda manufactured goods, just minus any fancy frills and features, and they were priced pretty reasonably.
Speaking of dryers with drop-down doors, anyone else remember the Burco "Tumblair"? My parents received one in 1975 (I think) as a wedding present, and it just ran and run until 1990 when it suddenly burnt out mid-cycle one day. Had a largish perforated drum, and a strange lint filter that resembled a wind sock, but I've never seen one since.
Ah, memories!
Kirk