Johnson Matthey 10 oz Vintage Silver Bar .999 Fine (Original Factory Mint Seal, R-Prefix)

Estimated Retail Value: $615.00 – $650.00 (Based on current silver spot levels and vintage refinery premiums)
Designation: Johnson Matthey 10 Troy Ounce Pressed Silver Bullion Bar
Production Era: Vintage / Legacy Issue (Circa 1980s)
Refinery / Assayer: Johnson Matthey Assayers & Refiners
Weight: 10 Ounces Troy (10 oz t)
Composition: .999 Fine Silver
Serial Number: R11008 (Unique engraved registry number with desirable “R” prefix)
Refinery Profile & Variety Significance:
The “R” Serial Prefix Variety: This highly collectible bar is a pressed vintage variety. It features the iconic registry serial number stamped horizontally along the lower obverse face inside a clean rectangular block. 
Reverse Design: The reverse face displays a classic, cleanly repeating diagonally patterned network of the framed “JM” initials adjacent to the traditional crossed assayers hammers (⚒) stamped at a 45-degree angle.
Condition & Packaging Notes:
Factory Packaging: Beautifully preserved and entirely intact inside its authentic, original factory-sealed plastic mint wrapper. The loose vinyl wrap shows minor storage crinkling but is free of heavy slits or tears, protecting the metal surfaces from air and humidity. 
Surface & Patina: Pristine, choice uncirculated condition beneath the plastic envelope. The surfaces display intensely bright, mirror-like factory reflection across the background fields and sharp definition on the raised lettering. No heavy milk spots or active dark oxidation rim toning are present.