Photo 1 of VINTAGE HANGCHOW MODEL U-101 VOLTAGE METER AND A HUMPHREY PRODUCTS QUICK DUMP VALVE

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Photo 1 of VINTAGE HANGCHOW MODEL U-101 VOLTAGE METER AND A HUMPHREY PRODUCTS QUICK DUMP VALVEPhoto 2 of VINTAGE HANGCHOW MODEL U-101 VOLTAGE METER AND A HUMPHREY PRODUCTS QUICK DUMP VALVEPhoto 3 of VINTAGE HANGCHOW MODEL U-101 VOLTAGE METER AND A HUMPHREY PRODUCTS QUICK DUMP VALVEPhoto 4 of VINTAGE HANGCHOW MODEL U-101 VOLTAGE METER AND A HUMPHREY PRODUCTS QUICK DUMP VALVE