Montblanc 139 Replica -Tibaldi Impero Celluloid

[fountainbel]

Hi all,

Below a few pictures of a new MB139 “replica" in Tibaldi Impero celluloid I’ve just finished in my shop.

Note he pen is dimensionally not an exact replica , and this for the following reasons :

1- The barrel end diamater and the filler housing diameter are slightly reduced, and the filling knob features a small conical diameter reduction over a 5mm length at its top.

The modifications were triggered by the fact that I have encountered too many MB139 caps with cracked cap lips.

These cracks were generated by posting the cap on the barrel .

On the original MB design the barrel "wedges” in the cap lip , hence creates radial tensions on the cap lip.

By slightly reducing the barrel and filler housing diameter, the barrel can enter 5mm deeper in the cap.

And by providing the small conical diameter reduction on the filling knob, the filling knob now enters 3mm deep in the nib chamber.

Doing so posting now occurs by wedging the filling knob top cone inside the nib chamber entry, were the cap is very robust.

No radial tensions on the fragile cap lip anymore .

On the attached sketch you can see on top the original posting ,and below the modification I’ve made

2- I’ve made the central cap ring and the clip from sterling silver, and the two small cap rings from gold plated brass.,

So cap rings set-up is inversely to the original MB139 set up

3- I’ve used a telescopic filler originating from the Montblanc 14X range pens, given these fillers are more maintenance friendly.

The MB nib installed is a flex F/M nib of the fifties in combination with a ski-slope feed both mounted in a screw in nib housing.

Sorry for the poor pictures, but the Photobucket editor being already 2 weeks not functional I can't do better

As always your comments and critique are very welcome !

Best regards,

Francis

http://i62.photobucket.com/albums/h89/fountainbel/Home%20made%20fountain%20pens/2019-01-20%2015.42.54.jpg

http://i62.photobucket.com/albums/h89/fountainbel/Home%20made%20fountain%20pens/2019-01-20%2015.39.57.jpg

[steve50]

Now that's quite something What's the ink window part made of?

Edited January 20, 2019 by steve50

[Karmachanic]

Is this my birthday present? Thank you soooo much!!

[siamackz]

Truly amazing! I like how you have kept the long ink window intact!

[zaddick]

Looks great. My favorite celluloid with an amazing form factor and top notch nib. What's not to love?! A+++

[PENRob]

Stunning pen Francis, I like the inverse ring colors, call it "931", most eclusive and beautiful...it looks so easy for you !

[Soot]

Another great work! Thanks for sharing!

[CS388]

Masterful, as always, Francis!

 

Being a person who (nearly) always posts, I'm delighted to see the thought you have put into that issue. Nice solution. Just curious: do you need a donor 139/149 for each of these pens? And is that an original ink window?

 

Thanks for sharing, I always enjoy marvelling at your work.

Best wishes. CS

Edited January 20, 2019 by CS388

[Remedial penmanship]

It’s stunning. I love these flattop pens; the super-long ink window and cap work reminiscent of a 139 are nice touches.

[kandarp]

Wow! You are killing me with these pens. Incredible work.

[EdwardSouthgate]

Beautiful Pen .

[kpong11]

Awesome job, thanks for sharing

[Carrau]

I really enjoy your enthusiasm for your projects, from both the aesthetic and the engineering standpoints. Well done!

[thygreyt]

Would you offer any of such wonders for sale?

[JulieParadise]

Would you offer any of such wonders for sale?

 

Yup, that would be my question as this beauty of a pen is simply a dream. Wow!

[jmnav]

Hi, Francis!

 

Can I tell I wholeheartedly hate you?

 

On one hand, your works are a pleasure for the eye and the mind, knowing how strongly you thought about the result, the many hours you put on them, and the masterfulness of the result achieved.

 

But then, on the other, knowing that, because all of the above the price it lawfully commands, I won't ever be able to own one of your marvels... GRRRR!!!

Edited January 21, 2019 by jmnav

[amk]

W-A-A-A-A-A-A-N-T. :-)

 

But what's truly impressive, apart from the beauty of the finished product, is that fact that you've actually been able to improve on the original through thoughtful consideration of the engineering issues.

[dubhe]

Wow. When will the heritage series provide us with something like this for the masses? Beautiful work Francis.

[dcpritch]

Francis the pen is spectacular!

[rajayk]

 

Hi all,

Below a few pictures of a new MB139 “replica" in Tibaldi Impero celluloid I’ve just finished in my shop.

Note he pen is dimensionally not an exact replica , and this for the following reasons :

1- The barrel end diamater and the filler housing diameter are slightly reduced, and the filling knob features a small conical diameter reduction over a 5mm length at its top.

The modifications were triggered by the fact that I have encountered too many MB139 caps with cracked cap lips.

These cracks were generated by posting the cap on the barrel .

On the original MB design the barrel "wedges” in the cap lip , hence creates radial tensions on the cap lip.

By slightly reducing the barrel and filler housing diameter, the barrel can enter 5mm deeper in the cap.

And by providing the small conical diameter reduction on the filling knob, the filling knob now enters 3mm deep in the nib chamber.

Doing so posting now occurs by wedging the filling knob top cone inside the nib chamber entry, were the cap is very robust.

No radial tensions on the fragile cap lip anymore .

On the attached sketch you can see on top the original posting ,and below the modification I’ve made

2- I’ve made the central cap ring and the clip from sterling silver, and the two small cap rings from gold plated brass.,

So cap rings set-up is inversely to the original MB139 set up

3- I’ve used a telescopic filler originating from the Montblanc 14X range pens, given these fillers are more maintenance friendly.

The MB nib installed is a flex F/M nib of the fifties in combination with a ski-slope feed both mounted in a screw in nib housing.

Sorry for the poor pictures, but the Photobucket editor being already 2 weeks not functional I can't do better

As always your comments and critique are very welcome !

Best regards,

Francis

http://i62.photobucket.com/albums/h89/fountainbel/Home%20made%20fountain%20pens/2019-01-20%2015.42.54.jpg

http://i62.photobucket.com/albums/h89/fountainbel/Home%20made%20fountain%20pens/2019-01-20%2015.39.57.jpg

 

 

Simply beautiful Francis! Just today I was thinking to myself, why hasn't a replica been made in this gorgeous material and how it would look. My curiosity has been satisfied.