Martin O-18 . Vintage 1926 parlor guitar. Have owned a lot of guitars over the years, but a1926 Martin is not one I've ever had. Infact I have only owned 3 martins my whole life. I had to measure this guitar to see what model it is. I will give the dimensions also because the O-18 was the very closest one but nothing matched exactly. To my measurements. I'm sure I just do not know what the proper way is. So please let me know. SN#275xx. dates to 1926 No model on neck block. Pictures tell the story , I did see some service evidence but not much.. some one made an nice pattern on the face of the headstock along time ago. Not sure what it is. There is some masking tape across the upper bout neck next to a brace across the top, My guess is to hold loose brace? No cracks that I can see in the top. Appears to be mahogany neck back sides and spruce top? No signs of repairs. Please get specific with your questions,I am an electric dealer the reluctantly sell acoustic guitars, because when I end up with them . I am not that familiar with Model/make specific issues related to them. I always miss stuff, ( mostly on flat tops) I'm getting better. I could not get a clear picture of sound block and underneath bridge. Pictures of back of top, bridge plate and masking tape below finger board. There are some small edge cracks on back that were repaired. Please address all issues before I ship. Sounds on as is condition. No warranty, no return, no partial refunds, no evaluation. No warranty. This guitar needs to be professionally set up before attempting playing it. Neck is strait. Original bar Frets. I believe the fingerboard is ebony. Let me know what you need as far as additional pictures. I have had this guitar for several tears now and it still has the 5 strings that came on it. They are worn out. I did not want to chance anything for fear of a crack of break. Sored with a guitar humidifier Thanks !!