There is a foil that looks like the one used in hot foil printing, however the difference is, when laid on a sheet of paper that has been laser printed (black) and fed through a laminator that can reach required temp. the foil adheres to the laser toner on the paper. This is used for letterheads, invitations. certificates etc. There is also a special paper which after the foil has been applied can be used as a transfer for items such as the one you posted. Not seen this for a while so not sure if still available.
Jim

Here is what I understand, and know that my understanding may be only partial.
The Signature system is composed of a set of hot impact print heads, which will follow regular computer entered engraving text, or vector art logos, set up in their proprietory
system and is attached to their engraving machines. I inquired about converting my old
Signature 8000, and got a vague responce about a year and a half ago with a figure in the
$12,000 area, and they were more reluctant than responsive, In my opinion, and experience, This Co. seems to be only interested in selling machines, collecting warranty fees, and apparently does not need to be responsive or supportive to old customers. "Saint Brewer" they aint.
Ward :-( 
"Never to old to learn"

I've heard a lot about this signature brand from people in the US...I must admit none of it has been positive....?

regards
Peter