Antique Coins Price Analysis - SAMPLE

**Overview**

This dataset provides a clean, analytics-ready snapshot of 1,319 collectible and antique coin listings captured between June 30, 2021 and August 18, 2025.It includes structured attributes such as title, taxonomy, price, seller (anonymized), location, and shipping coverage.Designed for data teams, marketplace operators, and pricing analysts, it supports BI dashboards, competitive benchmarking, catalog enrichment, and curation workflows.

With consistent formatting, UTF-8 compatibility, and clearly defined fields, the dataset enables efficient exploration of pricing distributions, metadata quality, category-level patterns, and geographic or shipping behaviors.Its manageable size makes it ideal for descriptive analytics, rule-based classifiers, and lightweight modeling approaches.

**Provenance**

Generated on August 18, 2025 using publicly accessible marketplace listing information.All PII has been removed, and seller identities were anonymized deterministically (seller1, seller2, etc.).The dataset is intended strictly for research, analytics, and catalog operations in accordance with source platform terms.

Licensed under the Creative Commons Attribution 4.0 International (CC BY 4.0).

Acknowledgements:
Compiled by Maths with Kanchana LLC.

**Use Cases**

This dataset is valuable for a variety of research and analytical applications, including:

- **Price Benchmarking**: Analyze price ranges, medians, and IQRs across categories, eras, metals, and denominations using Databricks SQL and Delta Lake.
- **Catalog Enrichment**: Apply lightweight NLP on titles to extract ruler, mint, or denomination metadata and standardize taxonomy.
- **Quality Assurance**: Perform rule-based anomaly detection to flag improbable price-to-description combinations.
- **Geo & Shipping Insights**: Map item locations and shipping inclusions/exclusions to optimize international seller reach.
- **Trend Monitoring**: Use lastUpdated timestamps to track listing freshness and support sourcing or promotional strategies.

**Column Dictionary**

- **title**: string — Seller’s cleaned listing title describing the coin (ruler/mint/denomination/era).
- **category_info**: string — Primary marketplace taxonomy path for numismatics categories.
- **categories_info_additional**: string — Optional secondary taxonomy tags for finer classification.
- **itemLocation**: string — City/region/country where the item ships from.
- **lastUpdated**: string — Timestamp of when the listing metadata was last observed.
- **price**: float — Numeric list price captured at observation.
- **seller**: string — Anonymized seller handle in deterministic sequence.
- **shipsTo**: string — Declared destination regions or countries.
- **excludesShipping**: string — Regions or countries excluded from shipping.