A 1958 photograph of the auditorium of the Tri-Valley High School, Hegins Township, Schuylkill County, Pennsylvania. The students appear to be attending an assembly program which is being presented via a large television on the stage.
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From the 1958 Yearbook, The Comitus, of the Tri-Valley High School, Hegins Township, Schuylkill County, Pennsylvania, available from Ancestry.com.
Corrections and additional information should be added as comments to this post.