Considering how expensive it is to run this Time Machine thing, I’m going to be really perturbed that we are 200 years too late to take advantage of things.
I think a lot depends on when you are travelling back to. Not a lot of financial institutions during the Mesozoic. Some places had lotteries, others placed enormous value on spices. Perhaps you could get into the prophecy game or use modern technology to give political or military advantage?
I was just making a general observation that my old thread differs a bit from this one, not calling you out for inaccurate thread comparison or anything 
Glad you enjoyed the thread. As mentioned I enjoyed re-reading it. Between that thread and this one, we Dopers will all be well-prepared once time travel is finally invented.
Step 1. Deposit couch change
Step 2. Go Forward in time
Too bad inflation has resulted in a loaf of bread costing 5 billion.
Oh, the tragic irony!
I would set my time machine to beam me into one of the large De Beers company vaults in London decades ago, where they stored ~$5 billion of uncut diamonds. After lining my pockets with millions of dollars of rocks, I’d beam back home before anyone knew I was there.
Or the Fed vaults in NYC and transport the gold out of it. How big is the machine so I know how many trips I need to make.
100 lbs of gold only takes up .62 gallon.
https://www.aqua-calc.com/calculate/weight-to-volume
Close to 3 million at current prices.
I’d stick with diamonds over gold, since diamonds are worth much more than gold by weight (~$10,000/gram). You don’t want to get a backache after all.
But why steal diamonds or gold or whatever? Maybe just plunk down a nickel in 1938, and legitimately buy a mint-condition comic book with the first appearance of Superman, and stash that lightweight item someplace nice…
Not to derail, but: How does the split go if you buy, say, 10 tickets with the right numbers?
I’d think knowledgeable comic book collectors would question a near century old comic book with no sign of aging.
Besides, I wouldn’t feel too bad stealing from De Beers—they don’t have a stellar reputation, and my haul would be a drop in the bucket for them.
That’s why I said to stash it someplace nice!
There’s a short story by Isaac Asimov in which the characters develop a way to reach back in time to take something small but valuable. They are able to grab a signature of Button Gwinnett, who signed the Declaration of Independence for Georgia (because his signature is particularly rare). But when they try to sell the signature, experts reject it because the paper appears too new to be genuine.
Which is why I structured the Gutenberg bible in a. Oak chest proposal the way I did. When found, it will legitimately be the correct age, and while it will be a mystery how it got in the root cellar, it clearly was there, so bob’s your uncle.
It’s possible that the book is damaged by bookworms or some other sort of insect.
Just go back and rewrap it in a ziplock or some such. Check in on it every decade or so.
Do you want tyrannosaurs roaming about? Cause this is how you get Tyrannosaurs roaming about! Just look at what happened in the everglades thanks to the exotic pet trade.