One of our Lodges in the district actually rents space for meeting in the Mechanics Hall, with a big S & C with arm and hammer out front. I attended a degree there a year ago and it (this building) was very interesting in how much similarity in arrangements and design.
As well my own mother Lodge began meeting UD and received their charter and had bought a Mechanics Hall. The building was 75 years old in 1923 when they bought it. Eventually they built the building we currently occupy in 1968-69.
I was amazed at how familiar the symbolism I saw in the Mechanic Hall.