Originally Posted by T-Mar

While this is a new serial number format, it's tempting to say it's 1977/1978. The component mix is almost the identical to a Centurion Sport from the era, with the exceptions of the bars, which could be part of the mixte configuration, and the fenders, which could be aftermarket. Still, given the lack of real estate for traditional model name placement, it may in fact be a Custom. If this of Taiwanese manufacture? I assume it has the "north star/cross" headbadge? It would be appreciated if you could take the time to get some date codes off the components (refer to components page of the Vintage-Trek website) and post a photo of the downtube decal. TIA.