Hi Shelly,

Thank you for contacting Mearto with your appraisal inquiry.
Converting oil lamps into electric table lamps was a popular way to preserve antique aesthetics while making them more functional and safe for modern use. This process allowed owners to enjoy the vintage charm of an oil lamp without the hassle of using oil and open flames.
Antique or vintage oil lamps with a glass, metal, or ceramic base worked well for conversion and the glass element on these lamps would have been receptacles for lamp oil. The pierced element and turn-key feature above it would have originally been fitted with a glass globe or shade in which the flame appeared / could have been adjusted; those have been replaced with light sockets and the lamps have been rewired for electric use.

There are a good number of converted oil lamps on the market; pairs are always more desirable than singles and the columnar form with octagonal base is a very nice feature. While I've not found any EXACT matches, comparably sized lamps of similar form sell at auction for about $500-700; you might expect to find these priced quite a bit higher in a retail setting if they were polished up a bit and fitted with shades, etc.

Based on the photos and information provided, and subject to examination, this is:

A pair of Neoclassical style silverplate columnar-form oil lamps, converted to table lamps
unattributed maker, American or European, late 19th Century, with later elements
Each surmounted by a 20th Century bulb socket over pierced globe fitting with adjustable turn-key feature over a glass receptacle, raised on a reeded columnar standard on octagonal bases. Electrified.
26 inches tall overall
CONDITION: Converted with electricity at some point; lacking shades.
PROVENANCE: Acquired with a home purchase
$500-700*
*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