Terry
I like your pins. Great collection! Your Briscoe emblem appeared about 1917 and may have continued to 1921 but I am still looking for confirmation of these dates. Regarding the dog bone-shaped Briscoe emblems shown earlier, my Chandler example was not a good one, because, as you noticed, the ends are curved. Anyway, here are two more Chandler radiator emblems, which much better show the similarity with the Briscoe emblems. If anyone can help to give the dates of use of the Briscoe dog bone-shaped emblems, I would be most grateful.