[Steam-engine] Steam Plows

[Dan Donaldson]

    What happened to all of the steam plows that I've seen pictures of?  A 
lot of shows use gang plows with levers or mehanical lifts to raise and 
lower the plows but I've never seen any surviving plows fitted with 
cylinders.  Ive seen lots of pictures so surely there must be some somwhere.
    Here is a link to a picture of a steam plow if you are not familier with 
one.
http://memory.loc.gov/cgi-bin/query/I?ngp:2:./temp/~ammem_Slck::displayType=1:m856sd=ndfapaza:m856sf=062:@@@/

Dan Donaldson