| Year | 1959 | Color | Natural Mahogany w/ Hi-gloss Satin Finish | | | | | |
| Birthplace | Hoboken, New Jersey | Factory Options | N/A | | | | | |
| Manufacturer | Guild Guitars Inc. | Case Mfd. | Uinknown | | | | | |
| Model | Del-Rio M-30 | Case Exterior | Spackled Grey and White Chipbiard | | | | | |
| Serial # | 1496 | Case Interior | Brown Felt w/ Neck Pocket | | | | | |
| Serial # Location | Ghost Label Inside Cavity | Case Extras | Original Neck Strap, Goya Crystal Microphone, Five Vintage Picks | | | | | |
| Original Price | $135.00 | | | | | | | |
| Specifications | | | | | | | | |
| Overall | | | | | | | | |
| Type | Acoustic Flat Top | Body Length | 20″ | | | | | |
| Weight | 3 lb 12 oz | Body Depth | UB- 3 1/2″ LB-4 1/8″ | | | | | |
| Scale | 24 3/4″ | Upper Bout Width | 11 5/8″ | | | | | |
| # Of Strings | 6 | Waist Bout Width | 9 1/4″ | | | | | |
| Total Length | 38 11/16″ | Lower Bout Width | 15 1/8″ | | | | | |
| Construction | | | | | | | | |
| Body | | | | | | | | |
| Body Type | OOO Acoustic, Rigth Handed | Body Binding | N/A | | | | | |
| Top | Honduras Mahogany | f-hole Binding | Double Ring, Outside 3-ply, Inside 4-ply | | | | | |
| Back | Honduras Mahogany | Bracing | X-Bracing Top, 4 Horizontal Tone Bars Back | | | | | |
| Sides | Honduras Mahogany | Finish | Nitrocellulose Lacquer | | | | | |
| Neck | | | | | | | | |
| Neck Detail | 1-piece Mahogany w/ 3-piece Headstock, Angled Headstock | Side Marker | 6 Orange Dot | | | | | |
| Neck Profile | C | Nut | Plastic | | | | | |
| Neck Depth | 1st Fret-0.094″ 10th Fret 0.960″ | Nut Width | 1 7/8″ | | | | | |
| Neck Attachment | Set | 12th Fret Width | 2 1/16″ | | | | | |
| Neck Heel Cap | N/A | Truss | Steel Rod | | | | | |
| Fingerboard | Rosewood | Truss Adjustment | Headstock Access 1/4″ Nut | | | | | |
| Fingerboard Radius | 7.25″ | Truss Adj. Cover | 2-ply Black White Celluloid, 2-screws to Headstock | | | | | |
| Fingerboard Binding | N/A | Peghead Profile | 3×3 Guild “lip-top” Paddle | | | | | |
| Frets | 0.078″ Silver Nickle | Peghead Veneer | Black Lacquer | | | | | |
| Fret Count | 20 | Peghead Binding | N/A | | | | | |
| Position Marker | 6 Dot Inlay 3,5,7,9,12(db),15 | Peghead Logo | Guild Script Gold Stencil | | | | | |
| Hardware | | | | | | | | |
| Tuners | Waverly Stitch-Line | Pickguard | Dark Tortoise Celluloid | | | | | |
| Tuners Type | 3-OAP, Open Back, 4-screws to Headstock | Pickguard Mount | Glued to Top | | | | | |
| Machine Heads | White Plastic Oval | Knobs | N/A | | | | | |
| Tuner Bushings | Round | Knob Details | N/A | | | | | |
| Tailpiece | Stop, Fixed | Switch Cap | N/A | | | | | |
| Tailpiece Mount | Glued to Body | Control Plate | N/A | | | | | |
| Bridge Type | Tailpiece Bridge Combo | Pickup Bezel | N/A | | | | | |
| Bridge Detail | Compensated, Unadjustable | Pickup Location | N/A | | | | | |
| Bridge Material | Rosewood | Pickup Mount | N/A | | | | | |
| Bridge Saddle | Plastic | Strap Button | White Plastic Tail Button | | | | | |
| Tremolo Arm | N/A | | | | | | | |
| Catalog Description | | | | | | | | |
| Economy M-20 Flat Top Guitar | | | | | | | | |
| A fine quality concert size guitar at a low, low budget price … made possible only by the most modern production facilities in Guild’s enlarged plant. | | | | | | | | |
| Model M-20 performs like high-price guitars because it has the fine construction and workmanship for which Guild is famous. Has the Guild fast-action mahogany neck with adjustable steel neck rod, finest rosewood fingerboard and pearl position markers. Honduras mahogany body is 13 ¾” wide by 18” long by 4 1/8” deep. Tortoise color pick guard, rosewood bridge, nickel-silver frets. Equipped with non-slip tuning pegs and Guild “Rite-Slant” strings. | | | | | | | | |
| Mahogany Finish. | | | | | | | | |
| Del Rio M-30 Flat Guitar | | | | | | | | |
| Similar to above Model M-20, but in luxurious grand concert size, 15 1/8” wide by 19 ½” long by 4 1/8” deep. Deluxe workmanship throughout. | | | | | | | | |
| Mahogany Finish | | | | | | | | |
| | | | | | | | |
| Chronologue Legend | | | | | | | | |
| Pickups numbering starts from top position. Ex. P1-Neck, P2-Middle, P3-Bridge | | | | | | | | |
| Pup – Pickup | | | | | | | | |
| UB – Upper-bout, LB – Lower-bout, WB – Waist-bout | | | | | | | | |
| Laminate – Pressed layers of wood w/ veneer | | | | | | | | |
| Celluloid – Nitrocellulose-based plastics | | | | | | | | |
| W/B – Binding alternates White/Black or Black/White depending on count. Ex. 5-ply W/B = W/B/W/B/W | | | | | | | | |
| (db) – Double Markers | | | | | | | | |
| Pearlette – Plastic resembling natural pearl. | | | | | | | | |
| MOP – Authentic mother of pearl | | | | | | | | |
| COB – Chrome over brass | | | | | | | | |
| CM – Chromed Metal | | | | | | | | |
| OAP – Tuners mounted on a metal plate | | | | | | | | |
| V/T – Volume/Tone | | | | | | | | |
| kΩ – Kiloohms, measuring electric resistance | | | | | | | | |
| μF – Microfared, measuring electrical capacitance | | | | | | | | |
| Unknown – Electronics – examination would disrupt vintage integrity, or accurate reading is weighted by other components. | | | | | | | | |
| Unknown – Wood or hardware – examination would disrupt vintage integrity | | | | | | | | |
| N/A – Not Available from manufacturer. | | | | | | | | |
| The Chronologue entry is for model inspected only. Similar models may exhibit different specifications. | | | | | | | | |
| The Chronologue is for historic reference. Updates to continue. | | | | | | | | |
| Maintenance on models not performed unless documented. | | | | | | | | |
| The Chronologue is a registered trademark of SLT Vintage | | | | | | | | |