A vintage? Engelhard 10oz poured? silver bar, can anyone tell the date on the rev?

KollectorKing

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Downtown1974

Feb. 15, 1982??

jrt103

Looks like 1983 or 1988 to me:

From the Allenglehard.com website:

11th series in ‘P’ serial prefix variation, one seller stated that they bought their bar in 1983 [P299370]. Note the reverse of these examples occasionally demonstrate a ‘reverse’ convex stamping impression of the top line found on the observe. We believe this was caused by an inadvertent stamping of the production line surface when a bar was not present. The stamping force altered the production line surface area in such a way that the hex-screw head pattern also began leaving an impression. Evidence suggests this span was shared with 100oz ‘W’ bars and later ‘P’ bars that were within the +/- P090000 – P430000 range. Some examples issued in plastic protective cover, pictured below and very rarely seen.

Hemispherical

Halfhearted attempted to remove something.

Or, maybe used a pencil or something to fill/darken the lines to see what was etched and it’s wearing off.

ccmorgan

The obverse is looking nice for it's age.