Category Archives: F-4

20461-R M22-0 3-Point Prototype

20461-R M22 3-Point Prototype

Beautiful blackface 3-Point prototype mandolin, red spruce top. This is the prototype, signed February 2004, 61st instrument Hans built.

Edited description from Acoustic Music Company’s online advert: “This is a varnish early florentine 3-point style Model 22 made with Bosnian maple and topped with Adirondack spruce. The instrument is a blackface,  Schaller tuners with ivoroid knobs, 1 and 1/8″ bone nut, fine sculpted ebony pick guard, scooped extension, flat fretboard, masterful fit and finish. Custom Calton case to accommodate the elongated 3 point body. This mandolin was the prototype (and is designated as such on the label) for this model.

From Mr. Brentrup:  “The 3 point mandolin was Orville’s original (circa 1908)  florentine instrument and is a very difficult build. It has a very different sound which is well suited to old time string band music.””

Label:

BrentrupO-22i

Charlie Rappaport taking it for a spin:

Charlie-3pt

Detail photos

BrentrupO-22m BrentrupO-22l BrentrupO-22k BrentrupO-22j BrentrupO-22h BrentrupO-22g BrentrupO-22f BrentrupO-22e BrentrupO-22d BrentrupO-22c BrentrupO-22b BrentrupO-22a

Custom Calton Case (Mandola Case)

BrentrupO-22no BrentrupO-22n

2007 M22L Hybrid F4

2007 M22L Hybrid F4, 14 fret neck and elevated fingerboard, simple JBrentrup logo peghead inlay, Italian spruce top, Bosnian maple back.

Hans said it has “the biting trebles associated with Italian and a big bottom end… stronger than the F4C type, and a bit more focused sounding…. very close (sounding) to my 4 yr old M22V (also Italian/Bosnian). The color is actually more red than the pix show, and there is that hint of orange and yellow in the center. You can see some of it on the shot of the side binding.”

On Hybrids:

“It means that they have a longer neck and elevated fingerboard like an F5, and of course, that means that the bridge is pushed forward a corresponding amount. Some folks’ hybrids are 15 fret, while mine are 14. Mine also have a maple neck instead of a mahogany. The M22 doesn’t stand for anything in particular, I just didn’t want to call it an F4.”

This mandolin is on the Right:

2007 M22V Hybrid F4

2007 M22V Hybrid F4, 14 fret neck and elevated fingerboard, Torch & Wire peghead inlay, vintage Handel tuner buttons, Italian spruce top, Bosnian maple back

Hans said it has “the biting trebles associated with Italian and a big bottom end… stronger than the F4C type, and a bit more focused sounding…. very close (sounding) to my 4 yr old M22V (also Italian/Bosnian). The color is actually more red than the pix show, and there is that hint of orange and yellow in the center. You can see some of it on the shot of the side binding.”

On Hybrids:

“It means that they have a longer neck and elevated fingerboard like an F5, and of course, that means that the bridge is pushed forward a corresponding amount. Some folks’ hybrids are 15 fret, while mine are 14. Mine also have a maple neck instead of a mahogany. The M22 doesn’t stand for anything in particular, I just didn’t want to call it an F4.”

This mandolin is on the left:

 

807150-R F4C

807150-R F4C

Beautiful F4 Classic style, Red Spruce Top, signed August, 2007, 150th instrument Hans built.

 

2005 M22V

2005 M22V Oval Hole F4

Said Hans “The 22V has a 14 fret neck, and elevated fingerboard extension.”

2005 M-4C (oval hole)

2005 M-4C Oval Hole

From Hans “Instrument features such “period” touches as large position markers, 3/32″ tortoise side dots (turned them from some .090″ binding), black plastic T/R cover, thinned down binding on fingerboard, pearl nut, and ivoroid buttons. The crowning touch was installing the beautiful tortoise pickguard by Cumberland Acoustic. Tuners are “aged” Gotohs treated with P/C board etchant, stained ivoroid buttons, and eyelets…make them work just like the old F-4 tuners. Am considering switching to Schaller bushings. As close as I could come to the original rosette…has the holly next to the herrinbone. Only difference is that there are more herringbone’s than the originals. The fingerboard is slightly wider than an F-5 and slightly narrower than an F-4…it’s 1-5/32″ at the nut, and 1-9/16″ at the 12th fret”

 

106109-I M22V (F4 Hybrid)

106109-I M22V (F4 Hybrid)

F-4 with elevated fingerboard, ebony fretboard, ebony pickguard, waverly tuners, varnish finish, engraved James tailpiece.