What is this equipment worth?

I am considering buying an old office and it has screen printing equipment in it. Was wondering if someone can give me an idea on what it might be worth and if it would be easy to sell. Thanks for any help. Here are some photos:

http://imageshack.us/g/1/10362092/
http://imageshack.us/photo/my-images/607/dpu1.jpg/
http://imageshack.us/photo/my-images/203/1fqe.jpg/
http://imageshack.us/photo/my-images/36/yzf.JPG/
http://imageshack.us/photo/my-images/22/jbb8.jpg/
http://imageshack.us/photo/my-images/198/dki.JPG/
http://imageshack.us/photo/my-images/547/2gik.jpg/