Knowledge can make the difference between a great buy and a high priced mistake.  It’s important to know as much as possible about your personal areas of special interest.  This knowledge can lead to golden opportunities and, perhaps more importantly, prevent costly errors.  A little knowled…

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I purchased a child’s tricycle with an identification plate at the end of the main frame that reads” TUBECRAFT / by / HEDSTROM / UNION / Trademark …. / FITCHBURG / MASS. / PAT. PENDING / MADE IN / U.S.A.”  I am trying to determine the date it was made.  I think between 1936 and 1950.  It nee…