I'm brand new to clocks and have no idea what this Howard Miller is worth. Model is 610-811. Which online appraisal sites are most trusted? What's the best way to go about

Name: I'm brand new to clocks and have no idea what this Howard Miller is worth. Model is 610-811. Which online appraisal sites are most trusted? What's the best way to go about
SKU: 18432355374
Price: 30.5 USD
Availability: InStock
Rating: 4.9 (436 reviews)

$ 30.50 · 4.9 (436) · In stock

I'm brand new to clocks and have no idea what this Howard Miller

I am wondering what does 'retail' means when selling a gpu? : r