This is a set of 4 used vintage tube shields with springs, suitable for 9-pin tubes such as the 12AX7 and 6DJ8. These shields are branded EBY, CINCH, ELCO, or unbranded, and were manufactured in the 1960s in the United States under TS103U02 specs. These are solid brass with nickel (chrome) plating as shown. They are compatible with various tube models and types. Condition will vary. Any questions feel free to ask before you bid.