Washburn Prewar Instrument Styles by Pleijsier Hubert is a good source book for Washburn guitar information.
Post a picture of the paper label, any stamp marks burned onto the back center strip and of the bridge. Those things are more helpful for dating Washburns than the serial number by itself. Serial numbers where started over a few times, you need the additional clues to get you in the ballpark.
Any idea when this was made?
It's pretty rough but I think I will get it back out and work on it some
Ian, welcome to the Forum! This place loves to see photos, many and varied! Maybe take a bunch and post um for us to see what you are fixing? Thanks!
jus'a wildwestern guess.......Sept 1st 1939...better than no guessatall
The paper label in your Washburn was used from 1906/7 - 1915. The serial number A3991 would date your guitar to 1907. It's hard to quit make out but it appears to be a style 115 (see bottom of the paper label). The bridges would typically be Ebony and normally have flattened pyramid wings, this one looks more like one you would see on a Regal made guitar. They also owned Regal Instrument Co. and there was a lot of parts swapping done at that time.
Here is a picture I had handy in my computer from a vintage instrument exhibit we hosted in 07 of my Style 115 Washburn. It has the Ebony, flattened pyramid bridge I mentioned.
This instrument would have been built for gut strings originally. It will be ladder braced and have a bridge plate that is in all likely hood be made from Spruce. The straight across, non-compensated saddle will not play in tune with steel or silk and steel strings. I use Nylgut "Alabastro" strings on mine and they sound and play great, Elderly Instruments has them. Any plastic strings for classical guitar would work though.
Ian, Here are some pictures of original Washburn bridges.
And a couple more.
When this thread re-surfaced, I looked back at the pictures of Washburn bridges that I had posted. The first one has uneven spacing of the bridge pins, and I should have mentioned that it was a Durkee patent bridge. Durkee was employed by the Washburn company, and apparently worked his was up to plant manager. The reason that the pins are unevenly spaced, is that the strings wrap around the pins. The three treble strings wrap around the bass side of their pins, while the three bass strings wrap around the treble side of their pins. The strings all end up evenly spaced. It was very cleverly conceived, but difficult to achieve, and I'm not sure there was a significant advantage. Probably a long run for a short slide.
I see a picture of a Levin mandolinguitar on the wall! Very rare.
Checked my Washburn book last night, your label and serial number dates it at 1910. The bottom of the label, just above the D6050 ( I have no idea what that is/means) should be stamped with the model description. They are generally faded and I can't see any trace on your label. I haven't tried myself but it may be worth checking with a UV light and see if that makes it legible.