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Posted By: Larry

It seems that if someone deliberately made this card to defraud, they would have made several....There is one way that somebody that has time may be able to definately confirm if the card is real...The US Trademark office phone # is 1-800-786-9199...They have "dead" trademark records that record the date of filed trademarks back prior to 1930 if you can find the right person or pay a fee possibly.

If the trademark "Big League Chewing Gum" was filed after 1930 and before 1933, the card is not real however it is possible that a prototype could have been made using the 1933 format as seen on the back font. This can be identified as stated by prior posters by using a microscope to see if the ink pattern dates. The front and back paper must be independently tested to see if the paper was manufactured in that era, as the back may be real and the front could have been attached but that does seem unlikely. This might require a very small sample to be removed which will cause collateral damage. If you can establish the date of the trademark, this will conclusively see if the item could have been made in 1930. Maybe someone wants to call the government # listed, at least it is a starting point.