If by "this" you mean "references to Judaism", then no, not at all uncommon.
Many orders and degrees of Freemasonry have names with religious-sounding titles, even though those orders often have little or nothing to do with the religion so named.
Further to your tokens: I found this site. Apparently the individual Mark Mason was supposed to carve his personal emblem or "mark" inside the circle.
You may be wondering what the string of letters around the circle stand for. Googling "K.S.H.T.W.S.S.T." will get you nowhere (I found that out the hard way). Google "H.T.W.S.S.T.K.S." instead and you get what appears to be the true meaning (though, being a Masonic item, one can only be certain of finding out the true meaning by joining the Order). Apparently, it stands for "Huram of Tyre, Widow's Son, Sent To King Solomon". Huram of Tyre is the only stonemason-architect mentioned by name in the Bible (I Kings 7: 13-14 and elsewhere), and was responsible for overseeing the construction of Solomon's Temple. As such, in Freemasonry he is held in high esteem.
Don't say "infinitely" when you mean "very"; otherwise, you'll have no word left when you want to talk about something really infinite. - C. S. Lewis