Here is a page I added to my collection ,as much as I have little desire to add such cheap fakes to my collection because someone has to maintain a access source of them.
These can easily be placed in a frosted or yellowed glassine envelope and sold in a scan as part of a collection . I ran into this a few years ago in bidding at a stamp auction ,where these modern made junk cause the bidding to sky rocket because a E-BAY seller thought they were real and bid the lot up .
*** Moved by Staff to a more appropriate forum. ***