Kay Flattop tenor guitar: model number and date please?
I have just obtained a Kay flattop tenor guitar with what looks like a spruce top, mahogany back and rims, and mahogany neck with rosewood board. It has separate open-back Kluson tuners and the smaller type Kay aluminium headstock plate logo with the "K" symbol in a circle. Rectangular rosewood pin bridge with scalloping to sides of the slightly compensated saddle. Tortoise teardrop screw-on pickguard, tortoise/white binding to top and soundhole, tortoise only to back. Lower bout is just under 15 inches wide and the shape is roughly OM/OOO. Printed inside the soundhole are the codes L2351 and N4. The Klusons are inscribed Kluson Mfg. Co., Chicago Ill. and Pat (but no patent number). Nearest info I've found online is for a model 661 (?) tenor on sale on Silvertone World, clearly an identical instrument apart from the logo, whose seller says the Silvertone version was only offered in 1964-65. Can anyone please confirm actual Kay model number and probable date(s) of production, and whether body woods are solid or laminate? Len Liechti, Bath, UK.