Hi Jonathan,

Thank you for contacting Mearto with your appraisal inquiry.
Based on the photos and information provided, and subject to examination, this is:

A vintage cobalt and tin bubble lantern
American, late 19th/early 20th Century
Of circular section with crimped peaked tin top, 9 lobes separated by tin ribs. With ceiling mount. Apparently unmarked.
11 inches high, 8 inches diameter
CONDITION: This lamp appears to be in generally good condition with some oxidation and rusting to metal (tin?) elements.
PROVENANCE: acquired at auction
$75-100*
*represents a fair-market value for auction purposes; retail or asking price may vary.

Please let us know if you have additional items to appraise, or questions/concerns, and thank you again for using Mearto.
~ Delia