My Final Four Coin Collection Adventures
July 12, 2025My Deep Dive into Building a Coin Sorting Machine by Date
July 12, 2025I recently had one of those serendipitous moments that remind me why I love coin collecting—finding a surprise treasure during a routine trip to the laundromat. While feeding cash into the change machine for my weekly wash, a pile of quarters tumbled out, and among them was a gleaming 2015 S Blue Ridge Parkway Quarter that caught my eye. This discovery sparked a journey of identification and learning that I’m excited to share with fellow numismatists.
Identifying the Coin: Proof or Business Strike?
At first glance, I wasn’t sure if this quarter was a proof or a business strike. Proof coins typically have a frosty, mirror-like finish that stands out, even after circulation, but this one looked more like a regular quarter in excellent condition. After some research and close examination, I confirmed it’s a business strike from the San Francisco Mint. Here’s how I distinguished it:
- Surface Appearance: Proofs retain noticeable mirrored surfaces and sharp details, while business strikes like this one appear more standard, with a consistent luster but no deep reflections.
- Mint Mark Clues: For America the Beautiful quarters (2012-2021), S mint marks aren’t exclusive to proofs; the Mint also produced clad business strikes for collectors, which can slip into circulation. This coin’s S mark, combined with its lack of mirroring, pointed to a business strike.
- Edge Inspection: I checked for a copper layer on the edge—it’s clearly clad (no silver), which aligns with most modern quarters and rules out a silver proof.
If you’re unsure about a similar find, I recommend using a magnifying glass to scrutinize the surfaces. Proofs often show impaired mirrors under wear, but business strikes just look worn like any other coin.
Numismatic Insights and Market Observations
This experience taught me valuable lessons about modern U.S. coinage that I think every collector should know. The 2015 S Blue Ridge Parkway business strike is part of a niche but fascinating series. Here’s why it’s special:
- Rarity and Mintage: These S-minted business strikes have mintages around one million per design, making them rarer than individual W-minted quarters. However, demand is lower, so they don’t command sky-high premiums—think $5-10 in uncirculated condition versus proofs that can fetch $10-20 or more.
- Circulation Surprises: It’s uncommon but not impossible to find these in the wild. Collectors like me sometimes spend extras from Mint rolls, so keep an eye out in change machines or coin returns. I once found a similar S-minted Kisatchie quarter at work, proving these gems can pop up anywhere.
- Series Nuances: Not all modern quarters follow the same rules. For instance, the America the Beautiful series had S business strikes, but the 2021 Crossing the Delaware quarter didn’t—always verify specifics on the U.S. Mint website or a reliable price guide.
Grading-wise, this coin was in fantastic shape, likely AU or better, which adds to its appeal. I’d suggest snapping photos in good lighting to assess condition before deciding to sell or slab it.
Practical Tips for Coin Hunting in Public Places
Hunting for coins in laundromats or similar spots can yield great finds, but it requires a bit of strategy and caution. Based on my routine of dropping $100 monthly in change machines, here’s my advice:
- Source Wisely: Focus on machines that dispense large volumes of coins, like those in laundromats or car washes. I’ve had luck by consistently feeding cash and sifting through the output—no need to rummage through return bins, which I avoid after childhood lessons.
- Hygiene First: Coins from public machines can be grimy, so I always wash my hands immediately after handling them. I make a beeline for the restroom post-dump to avoid any yuck factor—it’s a simple step that keeps collecting safe and enjoyable.
- Efficiency Boost: Combine coin hunting with errands, like doing actual laundry or grabbing a coffee nearby. It turns a chore into a treasure hunt without extra effort.
In the end, this laundromat haul reminded me that numismatic adventures can happen in the most mundane places. Whether you’re a seasoned collector or just starting, stay observant and always carry a loupe—you never know what you might uncover!