OM-18 Authentic 1933

Here to remind you why you fell in love with us in the first place, the new Authentics are constructed the old way – with hide glue, throughout, and historically-accurate detailing confirmed by using a CAT scan machine located at the Smithsonian Institute. Based on a 1933 OM-18 on loan from Fred Oster of Vintage Instruments, this guitar is constructed with a genuine mahogany back and sides and an Adirondack spruce top using an authentic circa 1933 bracing pattern. Featuring period-correct “OM-18″ Authentic-style appointments, right down to the Authentic 1933 neck barrel and heel. – See more at:


Construction: Dovetail Neck Joint – Hide Glue Construction

Body Size: 000-14 Fret Top Material: Adirondack Spruce

Rosette: Multi-Stripe

Bracing Pattern: Authentic 1933 X Brace

Brace Shape: Scalloped Brace

Material: Adirondack Spruce with VTS Brace Size: 5/16″ with 1/4″ Tone Bars

Back Material: Genuine Mahogany

Back Detail: N/A

Back Purfling/Strip: Madagascar Rosewood

Side Material: Genuine Mahogany

Side Detail: N/A

Endpiece: Madagascar Rosewood

Endpiece Inlay: N/A

Binding: Black

Top Inlay Material: Multi-Stripe

Side Inlay Material: N/A

Back Inlay Material: N/A

Neck Material: Genuine Mahogany

Neck Shape: Authentic 1933

Neck Taper: Standard Taper

Nut Material: Ebony

Headstock Shape: Solid with 1933 Taper Headplate

Material: Madagascar Rosewood

Headplate Detail: N/A

Headplate Logo Style: Script Authentic 1933

Overlay Headplate Binding Material: N/A

Heelcap: Ebony

Fingerboard Material: Ebony

Scale Length: 25.4″

Neck Joins Body At: 14th Fret

Number of Frets Total: 20

Fingerboard Width at Nut: 1 3/4”

Fingerboard Width at 12th Fret: 2 1/4”

Fingerboard Inlay Material: Abalone

Fingerboard Inlay Style: Old Style 18

Fingerboard Binding Material: N/A

Side Dots: Grained Ivoroid

Back and Side Finish: Vintage Gloss

Back and Sides Color: Dark Mahogany

Finish Top: Vintage Gloss Top Color: 1932 Shaded Finish

Neck: Vintage Gloss Neck Color: Dark Mahogany

Bridge Material: Ebony

Bridge Style: Authentic Belly – Glue in Long Saddle

Bridge String Spacing: 2 3/8”

Saddle: Bone Saddle Radius: 16″

Tuning Machines: Nickel Open Gear

Recommended Strings: SP Lifespan 92/8 Phosphor Bronze Medium (MSP7200)

Knob: Butterbean

Bridge Pin Material: Black Plastic Bridge

Pin Dots: N/A

Pickguard: Faux Tortoise

Pickguard Inlay: N/A

Case: Ply Hardshell