Watling Twin Jackpot Info Needed

[Lambow]

I am thinking about looking at a penny watling twin jackpot on Craigslist. In reseaching this, I see that there are many different varations and names for these.
What are the significant differences if any? What should I look for in terms of fakes?
Links to similar looking ones on ebay

http://www.ebay.com/itm/Watling-1934-WO ... 4ad7780839

http://www.ebay.com/itm/ANTIQUE-1932-WA ... 4d016c8b30

Link to the craigslist ad
http://reno.craigslist.org/atq/4536277176.html

Thanks for any information you can give me

Lambert

[mechanic]

The machines pictured are called Torch Fronts they are identical mechanisms with different coin heads and coin handling like the coin tube and slide assembly. The rest of the mechanism is the same on both as well as the jackpot assembly. Neither machines pictured look as though they have any additional options but it is not possible to tell without taking the mechanism out of the cases to see. Fakes are usually smaller casting that do not fit well especially when put on with originals. Many repro castings have slag marks on the inside corners caused when the molten metal burns or pushes away the sand that the mold is made from. Original castings were made from a process called investment casting which was very smooth and was reusable sand castings you only get one per mold.