Guide library
Practical checklists and careful next steps from the app team.
Help readers understand buffalo nickel dates using visible clues, context, comparisons, and safe next steps. This checklist shows which details survive a phone photo, which clues are weak, and how…
A focused checklist for lincoln penny errors that explains visible clues, common lookalikes, photo quality tips, and practical next steps before verification.
This guide walks through the visible clues, photo angles, and lookalike traps that matter for double die coin — and where a photo alone falls short.
A focused checklist for wheat penny errors, covering visible clues, photo-quality checks, common lookalikes, and safe next steps before relying on one image for identification.
This guide walks through the visible clues, photo angles, and lookalike traps that matter for state quarter errors — and where a photo alone falls short.
A practical look at coin errors: which details to photograph, how to weigh conflicting clues, and when to verify beyond the picture.
Learn how coin condition is described from visible wear, luster, strike, and surface clues. This checklist shows what to look for in photos, a step-by-step workflow, common examples, and the limits of reaching a grade from images alone.
A focused checklist for silver dollar mint marks: which visible clues reliably indicate mint location or production era, which clues are weak, and how to compare matches before further verification.
Learn practical visual clues and safe next steps for coin detection with a focused checklist covering photo quality, common lookalikes, and when to verify with pros.
Show readers where mint marks appear and how they help narrow coin origin, date context, and collection notes. Includes a focused checklist for mint-mark spotting, photo tips, common lookalikes, and limits of identification from a single image.
