It's based on the "Zig-Zag Chair" designed by by Gerrit Rietveld in 1934.

But it's using individual slats and not Rietveld's solid slabs.

Nice chairs if you like modern.

Nice try, I'm familiar with the Rietveld "Zig-Zag Chair" but if you look closely again, my wood slat chairs do not follow the zig-zag "Z" shape - mine are more of a cantilevered design.

On another forum, someone actually suggested a folding chair that can hang flat on a wall when not in use (see link below). I had not seen that type of chair before, and although the shape in seating mode looks more like my slat chairs, it is obviously not the same chair.

So, still on the hunt for the backstory on these mysterious (but wonderful) slat chairs of mine...

Here is a link that might be useful: Innovative chairs that fold up flat and can be hung on a wall

I have the same chairs. I bought 2 of them in 2002 at a store in Los Angeles called Twentieth on Beverly blvd. I believe a Californian wood craftsmen made them but I don't know his name. Would love to buy more.

These chairs are designed by an artist/furniture designer Alwy Visschedyk who is based in West Hollywood/Los Angeles. Not zig zag but cantilevered with slotted eucalyptus wood. I met him working with a client. He had them built in Honduras or somewhere in the area, cannot recall. I believe they were "mass produced" and how many he made I am not sure. I would say late 70s, early 80s? He said he didn't like the sealants and had the varnish shipped down there from the states. My client has 8 plus two custom captain chairs that compliment the set but not similar. Client also has a Parson's table and a short simple triangular occasional table. You can google his name and see one of them in his apartment, and he also designed dining tables, and may other pieces of statement furniture all pre-Internet! Currently has line of outdoor furniture for a major to the trade showroom, Summit I think. Very nice man and an honor to meet him.

Alwy Visschedyk

https://www.wright20.com/auctions/2021/10/design/399

a Set of six just sold at auction today.