Welcome to TNet & thanks for showing us your stoneware jug. It dates to approximately the Turn of the 20th Century. Can you read the letters in the ribbon under the eagle?
This form, let's call her Madonna, was in use approximately 1900 to 1930ish. I'm glad you told me it was a "US eagle," cuz the stencil is kinda weak. What you call a chip, I'd call a chunk, is missing from the front. Clean it up and take some more photos. Currently, it's not showroom ready.
Who said anything about rarity? This jug is not rare, nor does rarity equate with value. Here's some jugs currently available @ electronic auction: 5 Gallon Stoneware Jugs You might follow them.
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