The California manufacturer Hallfield Pottery was founded by Bill Fields and James Hall, and is known for the high quality art pottery they produced in the 1950s. I can't confirm that TV lamps were part of their catalog, but the lamp shown below is clearly marked Hallfield and dates undoubtedly from the '50s.

	value:  rarity: It looks like this Hallfield Stallion is about to take off! While it doesn't come out well in the photos, this lamp has a beautiful gold iridescent glaze.
	Back view of the Hallfield Stallion. The base of this TV lamp, probably once hidden by protective felt, is the in-mold marking, USA Hallfield.