Help with usage and classification on Vintage shimano D type?

[TheSignGuy]

I have a wheel dated July 1985 that as indicated by JG, it is a D Type coaster D TYPE Bmx wheel..
Whats so great about it is there anything special about it for its time? As well

Im pretty sure my 68 weatern flyer buzz is a clone if anyone recognized headset code numbers I have a photo