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1950s Silvertone Model 670 Vintage Kay-Made USA Archtop Electric Guitar w/ Case


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Up for sale, a 1950's Silvertone Model 670 Aristocrat in excellent condition and in perfect working order. Manufactured in the USA by the Kay company for the Sears catalog and their exclusive "Silvertone" line of instruments, the 670 was only offered for a few short years in the early '50s. While originally an acoustic instrument, this Silvertone has been fitted with a floating neck position pickup and control array on the top. Amongst the more lively, clear, and powerful sounding Aristocrats we’ve encountered, the 670 boasts a spruce top and figured curly maple back and sides with a full 17" lower bout and 3 1/2" body depth. The volume and presence cuts with a nuanced, yet warm percussive quality that adds definition to single note lines and complex chords, and the low end is focused but strong, with an articulate, crisp midrange bark that growls with authoritative strumming. The pickup translates these acoustic properties through an amp with a warm, sparkling sound. The guitar weighs only 5lbs and has been professionally setup and serviced here at Mike & Mike's Guitar Bar with fresh 11-50 roundwound nickel strings and comfortable action.
The maple neck has a mammoth “baseball bat” U shape with huge shoulders and a gradual increase in depth as you travel up the bound Brazilian rosewood fretboard. Measuring 1.075” deep at the 1st fret and 1.210” at the 9th as the profile begins to transition into the heel, this neck is a hearty handful that chords easily in every register. The bound fretboard retains its original medium jumbo fretwire, and the frets have ample height and crown, exhibiting virtually no wear. The scale length is just shy of 26", and the nut measures 1 5/8" in width. The headstock is easily one of the best features of this instrument with an overlay that looks like a medieval crest, with gold "Silvertone" script etched at the top. This is no mere veneer and there is depth to the design, which is immaculate and features vibrant colors and a tortoise backing. The guitar has been fitted with a set of aged nickel-plated and etched StewMac Golden Age strip tuners with white lollipop buttons.

The hardware includes the original nickel trapeze tailpiece, while the bridge is a modern replacement with a bone saddle for ideal top end articulation. The bridge has height for future adjustment, and the neck has just been professionally reset, meeting the body at the ideal angle for decades of future trouble-free playing. The original raised pickguard and bracket are intact, and the guard has an identical shield graphic to the headstock, with gold pinstriping. A pair of new cream "cupcake" Volume and Tone knobs rounds things out.

Cosmetically, this guitar boasts its original nitro lacquer finish, described in the original catalog as "mahogany," and in reality a vibrant grayish two-tone Sunburst which highlights a few subtle ripples of curly maple figuring on the sides and back. There is one slender repaired crack at the bass-side waist on the top, and some expected small scattered finish chips and scuffs on the guitar as a whole. There is light scuffing on the bass-side of the pick path as well. The nitro lacquer is smooth and glossy on the baseball bat U-shaped neck profile.
This Silvertone is a rare acoustic model in its own right, fully serviced here at Mike & Mike's Guitar Bar for optimal playability, and benefiting from a professional neck reset. The pickup adds an extra dimension to the guitar's acoustic properties, and this is a very unique vintage Silvertone, manufactured in the USA by Kay!
A modern hardshell case is included.