My guess is that this is serial number 150436 as described at http://forums.wcha.org/showthread.php?11987 from your previous request. This is the only Otca in the 15043x range. Feel free to reply here or there if you have any other questions.
Thanks Benson.
I thought I had done that before but didn't find it in my previous threads. It finally sold and I was trying to pass on the build sheet to the new owner.