A transfer with durable images comprising a support sheet having a monolayer of transparent microspheres that are partially embedded in the support sheet with a specularly reflecting layer covering the parts of the surfaces of the microspheres which are exposed above the support sheet. One or more coatings...http://www.google.ca/patents/US5510178?utm_source=gb-gplus-sharePatent US5510178 - Transfer article for forming tetroreflective and colored images and method of making same
