White Amplification made valve amps in Sunderland UK.

From vintageamps.com [EF-86 FAN]  “The earlier White heads were built in the Matamp factory in Huddersfield – Jeff (owner of Matamp) has told me this face-to-face on many occasions. The later stuff was made by the White shop in Sunderland.”

Reviews are at Harmony Central for three models

White Amplification 100 Watt Head
White Amplification Little Rock 112 Combo
White Amplification Little Rock Head

Images Little Rock 2 by 12 combo ebay:
White Amplification Little Rock

White Amplification