I bought these as a teenager from my great-uncles farmstead action. The decades have gone by and now I could move them on. As I am never going to find the rest of the bike. They are chain drive with a pulley brake on both front and back. I don't know much about Douglas's but think they are maybe 1924 or 25 ish. But don't even know for sure.
I don't even know what a fair price is on them. They are in Canada and have been stored out of the weather. I have them stored in a 1935 ford four-door sedan that my father gave me for a someday restoration.
Email me for pictures and make offers.
Steve_maier@hotmail.com