Gold. 21st Centurys’ tulip bulb. I’d rather have copper, lead, brass, & wheat.
The copper, lead & brass is to protect the wheat. ;-)
If, & it’s a big if, granted, 1929 were to happen again, which would you rather have? A gold coin, or a loaf of bread?
By far -- a loaf of bread. The existence of a loaf of bread assumes that it is available.
If it's available, I assume there's more.
If there's more bread, someone is selling it.
If someone is selling it, that means they can't eat it all and need something with which to store the value of their bread. That's where gold comes in.
About the only thing the beatniks and hippies got right was when they called money, "bread".
I'd take the gold coin. The price of bread in 1929 was about 10 cents, while the gold coin held value at $20.66. In general, food prices were falling in the depression, and there wasn't a shortage of it, just a shortage of jobs to get money to buy it.
Well, since I already have rice, beans, canned food, plenty of water, and veggies in the garden, I'll take the gold.
During recovery, I can turn that gold back into something valuable, whereas the pile of mold that was once an unneeded loaf of bread won't be worth much.
These "you can have this OR that" type questions are pretty silly.