I am researching a counterfeit postage stamp that was used to mail a Nigeria-type scam letter from France to the US. I am not an expert in printing methods, but based on my research, I believe it was printed by offset lithography, likely in China (which is believed to be the source of many other counterfeits). (The genuine stamp it imitates is engraved.) Below is an enlarged image. It is printed on very glossy paper. Am I right that it was printed by offset lithography and not some other method such as ink jet or giclee? Thanks very much!