These men appear to have come out of the building behind them to pose for an impromptu group photograph. Intriguingly, two of them are holding tools of their trade, whatever that was. One of those men is also holding a round object with the year 1875 written on it, along with the number 60, the letter H and possibly the letter G. What were they trying to tell us?
The cabinet card came from Pennsylvania but could have originated elsewhere. The back is blank.