Overview
The clear 'MILT SPARKS / IDAHO CITY, ID' stamp definitively identifies the maker and dates production to between 1969 (when Sparks started in Idaho City) and 1989 (when the shop moved to Boise).
Identification
Vintage Milt Sparks Summer Special IWB Holster, Idaho City Stamp
Photo reference
5 uploaded photos
Story
Milt Sparks founded his eponymous company in Idaho City in 1969, building a reputation for uncompromising quality in custom gun leather. The 'Summer Special' design, originally conceived by Bruce Nelson, was refined and popularized by Sparks, becoming the industry standard for inside-the-waistband (IWB) concealment. The Idaho City maker's mark definitively dates this piece to the company's first two decades before their move to Boise in 1989.
Maker / Origin
Milt Sparks
Condition & Value
The holster appears to be in typical used condition for its age, with the rough-out leather showing standard wear that does not compromise its structural integrity. The smooth leather reinforced mouth and metal snap hardware appear intact.
Full Research
See what it's actually worth.
Sold comps, value drivers, and venue guidance pulled from recent auction results.
Market Analysis
Vintage Milt Sparks leather, particularly from the Idaho City era (1969-1989), enjoys a strong cult following among firearms enthusiasts and concealed carry practitioners. The Summer Special is arguably their most famous design and remains highly relevant today. Buyers are primarily found on dedicated firearm forums, eBay, and specialized sporting goods auctions, with premiums paid for holsters fitting classic 1911s, Browning Hi-Powers, or early Glocks.
Value Drivers
▲ Idaho City maker's mark definitively dates the holster to the highly desirable 1969-1989 era.
▲ Summer Special (IWB) design is Milt Sparks' flagship model and remains highly sought after.
▲ Rough-out leather and reinforced mouth construction appear structurally sound.
Concerns
▼ Unknown firearm fitment — if molded for an obsolete or unpopular handgun, demand and value will drop significantly.
▼ Dealer asking prices for this era often exceed $275, but actual auction clearing prices are typically much lower.
Best Venue
List on a platform with a strong firearms accessory market, such as eBay or GunBroker. Before listing, it is highly recommended to check the back or under the belt loops for any faint model numbers, or to test-fit common firearms (like a 1911 or Glock 19). If the gun model remains unknown, list it as a 'Vintage Milt Sparks Idaho City Summer Special - Unknown Fit' with detailed measurements and clear photos of the molding, pricing it at $99 to encourage competitive bidding.
Upside Potential
If the holster is confirmed to fit a highly desirable and commonly carried classic firearm, such as a 1911 Commander or a Browning Hi-Power, it could attract competitive bidding from collectors and push the final sale price toward the $250-$300 dealer retail range.