Dreaming of selling vegetables at a farmer's market, especially in a vintage setting like the 1940s or 50s, can hold various meanings. Here are some interpretations:

1. Connection to Simplicity: The farmer's market signifies a return to simpler times, possibly reflecting a desire for a more straightforward, less complicated life. You might be seeking stability and authenticity in your current situation.
2. Nostalgia: The blurred, old-film quality of the dream could indicate feelings of nostalgia or a longing for the past. This may suggest you are reflecting on your own history, values, or experiences from that era, whether directly or indirectly.
3. Growth and Abundance: Selling vegetables can symbolize personal growth, nourishment, and the fruits of your labor. This dream may imply that you are in a phase where you are ready to share your talents or efforts with others.
4. Cultural or Family Heritage: If you have connections to that time period or culture, the dream could be an exploration of your roots or family traditions, highlighting what you value from that background.
5. Creativity and Expression: Engaging in a market setting can also represent your creativity and the exchange of ideas. You might be considering how to present yourself or your work to the world.

Consider how these themes resonate with your current life situation. Reflecting on your feelings during the dream and any recent events in your life can provide further clarity.