0.01 uF Mica Capacitor. This is likely from World War 2! I do not guaranty tubes that are sold as-is or untested. Be mindful of trying to combine heavy and delicate things in one order. You did read them, right?.

Here is a nice old style mica transmitter capacitor. As is due to age, of course. Mica Capacitor. I do not guaranty tubes that are sold as-is or untested. Be mindful of trying to combine heavy and delicate things in one order.