Vintage Mack Trucks 10K Gold Service Award Pin Collection - Set of 3 For Sale

Vintage Mack Trucks 10K Gold Service Award Pin Collection - Set of 3 (15, 20 & 30 Year Tiers)Product OverviewUp for sale is a remarkable, rare chronological set of three (3) authentic vintage Mack Trucks employee milestone service pins. Manufactured by the prestigious corporate awards jeweler O.C. Tanner, these historic pieces recognize decades of professional dedication.Every single pin features the iconic Mack Trucks Bulldog emblem mounted on a solid 10-Karat Yellow Gold backplate. The set charts a beautiful timeline of service progression from the 15-year tier through to the rare 30-year crown-tiered achievement, complete with their genuine gemstone accents and original presentation cases.Itemized Inventory & Details1. 15-Year Service Award Pin Set

• Milestone: 15 Years of Dedicated Service
• Gemstones: Two (2) Genuine Diamonds & One (1) Central Red Ruby
• Back Hallmarks: Stamped 10K EMB CTO (Solid 10K Gold Emblem by O.C. Tanner)
• Design: Classic oval \"Mack\" nameplate under the standing Bulldog mascot.
• Included Accessories: Vintage blue plastic hard-shell presentation case with gold-tone \"10K GOLD EMBLEM\" plaque. Comes complete with the accompanying Sterling Silver (STERLING stamped) tie-tack security chain and tension alligator clip.

2. 20-Year Service Award Pin Set

• Milestone: 20 Years of Dedicated Service
• Gemstones: Two (2) Genuine Diamonds
• Back Hallmarks: Stamped 10K EMB CTO (Solid 10K Gold Emblem by O.C. Tanner)
• Design: Oval \"Mack\" nameplate configuration matching the 15-year layout with an altered tiered gemstone arrangement.
• Included Accessories: Vintage blue plastic hard-shell presentation case with gold-tone \"10K GOLD EMBLEM\" plaque. Comes complete with the accompanying Sterling Silver (STERLING stamped) tie-tack security chain and tension alligator clip.

3. 30-Year Service Award Pin Set

• Milestone: 30 Years of Dedicated Service
• Gemstones: Four (4) Genuine Diamonds aligned along the lower base panel
• Back Hallmarks: Stamped cTo® 10K (Solid 10K Gold by O.C. Tanner)
• Design: A grand, upgraded crown-shaped tiered structure reserved for premium long-term career honors.
• Included Accessories: Elite deluxe brown faux-leather presentation clamshell box featuring the classic gold-leaf \"O.C. Tanner\" branding scripted inside the silk lid lining. Includes premium gold-tone \"10K GOLD EMBLEM\" presentation block.

Condition Report

• Metal & Stones: Excellent vintage condition. The 10K gold retains a beautiful warm luster. The diamonds and ruby are firmly set, clear, and bright.
• Attachments: The sterling silver chains, clasps, and tie bars function perfectly with standard age-appropriate vintage patina.
• Cases: Presentation cases open and snap shut firmly. Interior velveteen and silk elements are exceptionally clean with minimal shelf wear. (Please see high-resolution photos for exact cosmetic details).

Will ship via USPS Ground advantage for free