The Apple I was built by Woz in his parents’ garage, and sold as a bare board to interested parties at the local user group meeting.
The Apple II went through seven revisions (firmware mostly), including the Apple II+, then the IIe came out (late 1983, I got mine in 1984); all the Apple II models had metal baseplates and plastic cases, AFAIK. I parted my IIe system out, hmm, over 20 years ago, kept the IIgs, have some components around from Apple II systems, including a IIc (bought for $10, have never fired it up) that needs a little work on its power cord (brick on a leash). The IIc came out, hmm, circa 1985, drove AppleWorks sales and vice versa. Also, as a quasi-laptop, appeared in the movie “2010” in the beach scene.
I believe I got the IIc around Christmas time in 1985 or 86.
Beware: there are Apple I clones built in the 21’st century that are very, very close to the original board, down to credible date codes on the chips. I can get plenty of chips with date codes to the early 1970’s. And there have been people who have faked date codes on chips.