The Pleijsier Hubert book is a must have if your into old Washburns. There is some great information in there and many images from old catalogs that include guitars, mandolins and banjos.
There is a catalog page in the book with this instrument. The guitar images you posted are of a top of the line model, a style 299, which is a concert size instrument. Sister top of the line instruments would have been the 199, standard size and the 399, which is their grand concert size. The 299 sold new for $135, a lot of money back then. The 399 sold for $10 more and the 199, $10 less.
The guitar is easy to date from the burned in stamp next to the Washburn belt logo. If it was all there it would read, style 1896. They only used the stamp in 1896, changed to style 1897 the following year and used that up until 1905. The serial number 81,243, by itself, can only date the instrument between 1889 and 1897 but the style 1896 stamp nails the date.
The new model stamp began around 1886 and was used up until 1905. The round White label was used from 1896 - 1905 and the belt logo was used from 1883/4 until 1922.
Can't help you with value but would recommend getting an appraisal from George Gruhn. There can't be many of these top end models out there and this example appears to be in very fine condition. I suspect an appraisal would make a little zinging sound like you hear on Antiques Road show when they give a good number.
Thank you Paul, this is very helpful. I was confused by the belt logo, I thought maybe it was saying the style was 1896 rather than 299.
I think we will definitely be contacting the Gruhn shop.
Thanks again, I really appreciate it
Your welcome John. I really enjoyed seeing the images you posted, looks like a wonderful example. It may be fun to contact Pleijsier Hubert, he may like to include images of this guitar if he is planning on printing another addition of his book.
Where was the serial number? Stamped numbers inside of the guitar began about 1887. If it was on top of the headstock, then there should also be a model or style stamp. Serial numbers without an "A" prefix (which would be on a Washburn label) where around 10,000 by 1888/89. Very hard to make out the small paper label in the image but it appears to be a retailer's label.
The bridge is modified or replaced, it has a compensated saddle. Has it been re-braced as well? Rosewood bridges and no dot markers in the fingerboard would range from 1883/4 - 1889. You don't show the entire fingerboard but I don't see any markers at 12, 10 or 9. Hard to tell for sure but the neck heel appears to be the enlarged version that was changed from a smaller, lower version. This change happened in 1887. The New Model stamp was used from 1886/7 - 1905. From what can be seen in your images, I would date your guitar to 1887.
Re-finishes tend to hurt value but may appeal to a player. Not an appraiser though, so I can only guess.