Hi Masao; welcome to the group! Mica and Val are the Alembic employees who, after all their other responsibilities, scan these posts. It's hard for them to read all the posts, so I've added Serial Number Request to the title of your post to make it more likely that they will notice it. If neither of them have responded in a day or two, go ahead and post another reminder. I know it is their intention to respond to these requests; but they do get swamped in work! Congrats on the California Special. We don't see too many of these guitars, so if you have any pictures, I know the group would love to see them. If you like, you can post pics in the Showcase section.