OK you must be asking what does an Altec 1803have to do with art?
and if you look a bit closer this odd bird has a 288 up its bum.
Audio folk can rest assured they come from the stereo era but tend to have channel separation of 100 feet or more.
The above birds come from the Altec genus and the more pedestrian brass genus was also well represented.
Finally the ultra-rare unobtanium WE genus also makes an appearance.
alas.... unlike the lowly Altec's, the WE sample is sans 555