This is the 3rd time that Tom Del has posted about this bicycle. Previously, I gave him the following response;
"That is not the traditional Bridgestone serial number format and it would appear to be a contract manufactured frame. Twelve speed, if OEM, would place it no older than 1978, while the Bridgestone reference was dropped circa 1982. At this point, the best age indicators would be the date codes on the components, provided they are OEM. Refer to the components (page) of the Vintage-Trek website for decoding the date codes. Regardless, please post pictures, as many members would enjoy seeing your bicycle."
The owner never did reply but goes on to post the same question in other Kabuki threads.