De Soto Frank wrote:If you drop the panel on the back-side of the machine, you should see a paper license-label glues to one of the sides... in the lower left-hand corner, you should find a date indicating when the label was printed. This gives a very close indication of when your machine was built.
I have a 1909 XVI, suffix-C (stamped over the letter "B" on the plate); mine has box-albums. Bullet-brake, large round knob & pointer speed control.
I am attaching a picture of the license label from my L-door. In this case, the serial number of the machine is rubber-stamped in red-ink on the upper RH corner of the License label.
I just checked, mine says February 24 1911. The guy I bought it from said that his Great Uncle bought it in 1912. I also found some broken up card board like paper in the back of one of the album shelves. It wasn't green, but it did look faded. Could this be evidence of albums not boxes? I suppose it is more likely mine had the albums.