Let's see your threadless-era photographs. I'll start out with a few I have. Here's one of St. Thomas, Ontario from 1875 - looking East down Talbot Street, from Stanley Street. There is a very close-up view of a late threadless-era pole with what looks like either a 740 style or a short 742 on top, a definite 742 on the right side pin and possibly an EC&M on the left lower side pin.