Whoa, it would be worth a lot. If my sources are correct, one of these sold for US$685 on eBay in 1999. I think it would be worth even more now, since only 10,000 were made.
That is a matter of your opinion, not ours.
circular
There is no Pentonville Road in the American (original) version of Monopoly.
Boardwalk is the highest property and it is $400 in the original United States Monopoly.
If you want something entertaing for a short period of time Monopoly Express is better.If you want somethig that is longer , Monoploy. But you could play the original Monopoly on the Monopoly Express gameboard.
400 Dollars
I don't know what you mean by generic Monopoly but you can get some Monopoly varieties for under $10. The original doesn't cost much more.
In the original version, 5.
Yes, in Monopoly, you can sell property back to the bank at half of the original purchase price.
1937IronRace carTop hatShoeThimbleLantern (retired early 1950s)Purse (retired early 1950s)Rocking horse(retired early 1950s)1940Battleship (repurposed from failed game, "Conflict")Cannon (repurposed from failed game, "Conflict")Early 1950sScottie dogHorse and riderWheelbarrow1995 (for release of 60th Anniversary Deluxe Monopoly)LocomotiveMoney bag
18
Old Kent Road