Picked this up at a muddy March flea market for two dollars. It has numbered notches and a rotating top plate, but no obvious way to attach it to anything. What is this thing?

The value of a vintage seed dial can vary significantly based on its condition, rarity, and historical significance. While a common model might fetch modest sums, rarer examples from notable manufacturers or with unique features can be quite valuable.

For a two-dollar investment, the find could be worth anywhere from a few dollars to several hundred, particularly if it is in good condition and has historical relevance. Regardless of monetary value, the cultural and educational worth of such a tool is significant, offering a tangible connection to agricultural history.