Originally Posted by
unworthy1
with the Tange fork and Tange (TR) DOs I bet this is in fact a Tange-tubed Japanese frame. Those headlugs look like Prugnats but I think they are the ones with the "points" in the front-most sockets that are very possibly Tange-made model 1818/1838 lugs. The fork is clearly marked as a Tange product and the crown MIGHT be a C-22 model.
Are you certain the 4-digit serial number is complete or could paint be hiding additional numbers?
Hi, rubbed the bb and the full number is 04892, what looks like stamped stronger to the right hand side as 0 is really faint, so thanks for the suggestion.