s/n B873804, types like it was made yesterday. I bought this machine for $14.98 in upstate Alabama at a giant antique store in the middle of the Nowhere Mountains. It had a broken escapement, but Mr Dane Bailey of AAA Typewriter in Birmingham gave me a stripped down donor/parts machine of a similar model as a challenge to fix it. It took me about twenty hours to perform the heart-transplant & get everything back together, but I managed to get the working escapement out of the donor machine and into this one...and it worked. I fixed it. A year later it sold for $175...and I wish I had it back - I miss Mr Bailey.