Rule 4532. Self-authentication of newspapers and periodicals of
general circulation. Extrinsic evidence of authenticity as a condition
precedent to admissibility is not required with respect to printed
materials purporting to be newspapers or periodicals of general
circulation; provided however, nothing herein shall be deemed to
preclude or limit the right of a party to challenge the authenticity of
such printed material, by extrinsic evidence or otherwise, prior to
admission by the court or to raise the issue of authenticity as an issue
of fact.