Ultra Rare Mullard Holland GZ34 5AR4 Metal Base Valve tV2 57G'DD' Getters (V5)

Ultra Rare Mullard Holland GZ34 5AR4 Metal Base Valve tV2 57G'DD' Getters (V5)
Ultra Rare Mullard Holland GZ34 5AR4 Metal Base Valve tV2 57G'DD' Getters (V5)
Ultra Rare Mullard Holland GZ34 5AR4 Metal Base Valve tV2 57G'DD' Getters (V5)

Ultra Rare Mullard Holland GZ34 5AR4 Metal Base Valve tV2 57G'DD' Getters (V5)
TV2 57G Code in the Base.
Ultra Rare Mullard Holland GZ34 5AR4 Metal Base Valve tV2 57G'DD' Getters (V5)