[GreenKeys] Teletype Model 33 ASR vs. ASR33

[Wa3frp]

Maybe someone on the list will know.  When and why did the Teletype 33 ASR become an ASR33? 

I recently saw a note posted here that used the name "ASR33" and I've seen it elsewhere.  Sometimes the name is completely inverted so that Teletype 33 ASR is called a ASR 33 Teletype.   I've heard of mass hysteria - is this a version of mass dyslexia?

Thanks and 73
Russ WA3FRP