CD 134 PATENT – DEC. 19. 1871 HEMI BLUE in outstanding condition Embossed on the (Dome) A (F-Skirt) PATENT / DEC 19 1871 This is an outstanding insulator by any standard. I can find no damage at all on this beautiful HEMINGRAY BLUE insulator but to be on the safe side( I don't like to use the M word) so I will call it VVN M this is a insulator for the discriminating collector or investor. You will never have to upgrade this one because it is the UPGRADE. When is the last time you saw one in this condition for sale!!! A steal at only ---$160.00--- Plus postage. We ship to USA and Canada… Buy with confidence! … We do not sell altered insulators! PayPal, Money Order, or Cashier's Check. Check our other insulators to combine freight.