On the left is a nice olive green embossed: A.T. & T. Co. That is EIN [010]. It also has backwards 10 on the dome. The center toll is also a EIN [010] embosssed: A.T. & T. Co. The letter spacing is different from the one on the left. This one has a 00 with a glass dot on the dome. Nice green color. The toll on the right is embossed: AM. TEL & TEL .CO. This is a variation of the EIN [010] this one having capital letters for the CO. This toll has backward 11 on the dome. This one is a nice yellow green color.