Hi everyone, can anyone identify the attachment. I picked up this (very heavy!) cast iron item at a recent garage sale. A thorough search of the internet has brought up no clues. As you can see it contains a crown with a reversed anchor below with an amphisbaena or two headed snake winding around it. There are no other markings regarding manufacture or date anywhere on the item. Can any of you provide me with any info at all to help me identify and find out the history of this item?