There were two different series of Resonators from New Hartford.
The first laminated wood series were first shown at NAMM in January 2012, they were available around summer 2012.
The second "S" series with solid wood came out around summer 2013.
Jackson Quinn wrote about that topic: "It's cool to have a reso with solid woods, I'm sure it'll give the sound a little more shimmer and body, but as I understand it most high-end resonators (biscuit bridge resonators anyway; I can't speak for high-end spidercones, as they are mostly small shops) are built using laminates. In a National Reso-Phonic informational video, they explained that using laminates is often better for building resonator guitars, because the body is essentially a speaker cabinet designed to house the cone, which acts as a speaker and produces most of the sound. The materials used in the body color the sound in various ways, but as the strings drive the cone directly, that's where most of the sound is coming from. So the goal becomes, "What's the best material to house a vibrating piece of metal without impeding the vibration, but can also stand up to that level of assault?" Laminate woods are generally stronger and less prone to warping, so that's an option. Or, of course, more metal. That's how I understand it, anyway.
National is considered by many to be the best in the business, and even their high-end "El Trovador" has a laminate top and back (I believe the sides are solid). That was the spec that I got from them when I called them a year or so ago, anyway. It might have changed.
My point (finally) is that solid woods may be good or bad in this context. I wouldn't worry about it with a resonator; the cone makes most of the sound. People are always talking about how their low-budget overseas-made reso sounds ten times better with, say, a Quarterman cone. And if I'm right, and they are generally made with laminates, then they're made that way for a reason."
All Guild models were made using 9.5" (R-30) or 10.5" (the other 3) hand-spun National® cones.
The first series were following 4, the wood was all laminated:
R-30:
"The Guild® R-30 is a round-neck resonator guitar with all-mahogany construction and the exclusive Reflect-O-Voice system, which consists of an internal sound reflecting plate and unique six-point open soundwell that provide maximum resonance and volume without becoming harsh. The result is pure and open sound with exceptional presence and remarkable string-to-string balance.
Other features include a hand-spun National® cone, “biscuit” bridge, 1 3/4” bone nut, rosewood fingerboard with pearl dot inlays, rosewood headcap with pearl Chesterfield logo, and nitrocellulose lacquer finish. Available in Vintage Sunburst."
R-33E:
"The Guild® R-33E is a square-neck resonator guitar with all-mahogany construction and the exclusive Reflect-O-Voice system, which consists of an internal sound reflecting plate and unique six-point open soundwell that provide maximum resonance and volume without becoming harsh. The result is pure and open sound with exceptional presence and remarkable string-to-string balance, especially when combined with the R-33E’s hand-spun National® cone and spider bridge system.
Other features include a built-in Fishman® Nashville Series resonator pickup system (designed specifically for spider-style bridges to provide consistent and accurate sound reproduction), open sound ports, 1 7/8” bone nut, rosewood fingerboard with pearl dot inlays, rosewood headcap with pearl Chesterfield logo, and nitrocellulose lacquer finish. Available in Natural."
R-35E:
"The Guild® R-35E is a square-neck resonator guitar with a flame maple body and the exclusive Reflect-O-Voice system, Which consists of an internal sound reflecting plate and unique six-point open soundwell that provide maximum resonance and volume without becoming harsh. The result is pure and open sound with exceptional presence and remarkable string-to-string balance, especially when combined with the R-35E’s hand-spun National® cone and spider bridge system.
Other features include a built-in Fishman® Nashville Series resonator pickup system (designed specifically for spider-style bridges to provide consistent and accurate sound reproduction), open sound ports, 1 7/8” bone nut, bound rosewood fingerboard with pearl dot inlays, rosewood headcap with pearl Chesterfield logo, and nitrocellulose lacquer finish. Available in Vintage Sunburst."
R-37E:
"The Guild® R-37E is a square-neck resonator guitar with a beautiful flame koa body and the exclusive Reflect-O-Voice system, which consists of an internal sound reflecting plate and unique six-point open soundwell that provide maximum resonance and volume without becoming harsh. The result is pure, open sound with exceptional presence and remarkable string-to-string balance, especially when combined with the R-37E’s hand-spun National® cone and spider bridge system.
Other features include a built-in Fishman® Nashville Series resonator pickup system (designed specifically for spider-style bridges to provide consistent and accurate sound reproduction), open sound ports, 1 7/8” bone nut, bound striped ebony fingerboard with pearl and abalone block inlays, bound headstock with pearl Chesterfield logo, and nitrocellulose lacquer finish. Available in Natural."
The second series added a "S" to the part number, also the 10 digit FMIC part numbers had changed, a "0" or "1" was replaced by a "5":
R-30 = 385 301 0835
R-30S = 385 305 0835
R-33E = 385 330 7821
R-33SE = 385 335 7821
R-35E = 385 350 7835
R-35SE = 385 355 7835
R-37E = 385 370 7821
R-37SE = 385 375 7821
Another R-30 video:
Ralf