Ah yes, Lophophora williamsii. $20 a button back in the day. A few years later it was “chocolate mescaline” in Hersey’s Chocolate milk powder. Then I discovered trichocereus pachanoi (San Pedro) for sale at Home Depot in Phoenix. What???? That started me on a nice cactus ebay business. eBay won’t take auctions for Trichocereus any more.
As for legality, @Nate and @Somatek , if you’re in Canada, ??? I don’t know, but here in the US, it’s still illegal Federally. https://www.dea.gov/sites/default/files/2020-06/Peyote%20and%20Mescaline-2020_0.pdf
So my mescaline days are decade(s) in the rear view mirrow now, but I still have pics and shhhhh, I still have this one, LOL!!! It’s a trichocereus bridgesii monstrose (long form), but it has another name. Know it’s common name? Hahahaha!!!