RARE SILVERTOWNE "P SERIAL" 10 OZ. POURED 99.9 FINE SILVER BAR P000441 
This particular series was actually produced by Engelhard at their Plainville Massachusetts plant in the 1970s for Silvertowne.  It is ranked by collectors as a "tier 1" rare bar with an original mintage of less than 300 with no records having been kept on how many were melted for industrial use over the years. The "P" prefix before the number stands for Plainville.  The bar does have wear, please see the pictures for further description and feel free contact me with any questions.