Photoshop 0.63 ! Do you Remember ?

I just found this site what it claims it found the first version of Photoshop (probably is the first comercial version).




But surfing the web I just discovered an image from the version 0.63 :



I interact with Photoshop at version 3 when they just added a new extraordinary feature: layers.
Probably some people laugh ... but then was a very important feature ... a feature what changed the image editors programs forever !