It isn't as elegant as Sloop, nor as basic as Shelley or Kuenstler. Any help would be much appreciated.

Crane & Company have been around a long, long time (they're just up the road from me). I can't recall how long they've been using this copperplate identity, but I wouldn't be surprised if it's a custom piece, perhaps even originally done in actual copperplate engraving (especially since I think that was their stock in trade at one point).

I highly doubt you'll find an exact digital match.

-- K.