I have looked at the above picture several hundred times in the past several years, but until recently, I did not see the Compass near the top of the middle altar. To my knowledge, I have not seen this particular point mentioned on any other Masonic website? In any event, the three altars are from the Carrawburgh Mithras Temple site in Britain. The site is near Hadrian’s Wall, which was built by the Romans about 2000 years ago. So, in essence, this is additional anecdotal evidence of Freemasonry’s link to the Roman religion of Mithraism and the Collegia system.