As they say, condition is everything. Excellent is worth more than average or poor. Will you be able to inspect it in person for warpage, cracks, or pitting from rust or sulphur? Absent any of those types of damage or defect, and if from the era when polish grinding was still being done, and if the lid is a true match, probably $25-50. (The lower end if you have to refurb it yourself, the higher if ready to use.)