I am a tuner in northern new jersey and just tuned an old kurtzman upright today and a sticker belonging to elmer brauer - piano tuner was afixed to the inside of the piano with a handwritten tuning date of nov. 18, 1943. there's a bit of interesting trivia for you. I am fascinated by the history of pianos and their caretakers. While I'm tuning I often wonder what the lives of those who built and card for them earlier was like. I took a picture of the sticker.
I could forward it to you Kevin if you'd like.
please contact me at bobdowlingpiano.com