If it has the S bell brace between the bell and body it will be based on the buescher 400 model (after selmer bought out buescher in 1963 ) and are a good imtermediate horn , the later ones are more student horns. Selmer signet have nothing to do with selmer paris models. I suppose you could call it vintage but not as we know vintage Dave

I have one of these (signet tenor) dates to around 1973. I've been asking around for a while about these saxes and I have heard that it's a good intermediate level horn, a selmer-owned Buescher / Bundy type sax, american made of course. I eventually got a better sax because I wasn't completely satisfied with the tone. I still keep it for when I play rowdy shows. You can look up the serial number at this page below(signets are after "Purchased by Selmer USA" in 1963: www.saxworx.com/bundy.htm