Here's a Dec. 19 1871 "bullet" profile insulator that is actually older than bullet collector Rick Jones !!!! This is an unlisted EIN in light blue aqua. MLOB and NO letter on rear skirt. The only two-line listing that is close is a (050). Strong legible embossing on this one as many of these do not. Has a flat base chip and some scratches to dome and W/G area but still a very good example of one of these old, old pieces. $20.00 + shipping. First email that says' "I'll take it.". No PayPal. Email with questions.