Here is the first of to pics I'm posting in follow up to the questios I asked a couple of days back about these CD 134 AM Insulatos I have found. Yesterday I retrieved a broken one that I had left behind because the dome was gone. It too has the extra period in question here. I've noticed that it isn't as refined as the other periods, however it still appears that is was intended to be one when it was put there on the mold. I would say it could qualify as a embossing error as well as a new listing in the future in the price guide. What do you say?