Grab and go auctions and sold to the highest bidder auctions...
house slave ,field slave
slave auctions would be held at certain places like markets, warehouses or even outside on a platform.
barraks
Very depressing for the slaves.
The slave owners bought their slaves at auctions.
At slave-auctions, which were widely advertised
Same way as any property . There were also slave auctions.
A lot of people in one place?
Usually buying at slave auctions. Or breeding their own.
they were examened and prodded which means pushed or nudged.
The purchased them at slave auctions. Owners that had more slaves than they needed, and those bringing them from Africa would sell them at slave markets.
One can find vehicle auctions in the online auction site eBay. It holds auctions for all types of vehicles, including vehicle parts. One can also read reviews of different vehicles in order to find the best one.