Posted By:
davidcyclebackPerhaps this is merely a reflection of my sheltered past, but I've never seen a Pinkerton card with postcard printing on back. I've seen the cards with a generic scorecard printed on back and blank backed. The blank backs were on occasion used as postcards way back when, with a handwritten letter, address and postmark.
'Pinkerton Postcard' or 'Pinkerton Scorecard' is a good way to distinguish them from the T5 Pinkerton cabinet cards, so I'm not objecting to the use of either name.