When Did MB149 Change Cap Threads?

[OCArt]

I'm interested in a desk pen holder for my MB149 but I'm beginning to see some eBay sellers talk about different cap threads. When did MB change the thread design?  Thanks in advance.  Dave

[Rowbo]

The cap threads changed on the 146 also. I have a couple which I would date (using the pinned post from member neugeekig) around 1991 (+/-?) that differ from each other in many features. Their caps are certainly not interchangeable. Hope this helps, if only a little. Sadly it seems that cap threads (3-start or 4-start) is not a parameter in his table. I also checked the pinned 'dating 149' and '149 trends' posts without success. Actually, specifying that you want a 3-start or a 4-start thread rather than looking at dates may suffice.

[fpupulin]

11 hours ago, OCArt said:

I'm interested in a desk pen holder for my MB149 but I'm beginning to see some eBay sellers talk about different cap threads. When did MB change the thread design?  Thanks in advance.  Dave

I can’t help with specifici dates, but based on my experience you do not need to thread your pen to the pen holder tulip in order for the nib to not dry. 
I have three 149 pen holders (resin with lead crystal), all with internal threads, which I constantly use with my 149s, Hemingway and Dumas. I just slip the pens in the holders, and I never had a nib that dried up in the tulip.

Actually, the last batches of the same pen holder produced by Montblanc for the 149 were not threaded at all, but smooth inside, just to slip the pen in.

Also, not having the pen screwed in, makes it immediately available for writing, which is a great advantage of a pen holder in the desk.

[Karmachanic]

https://www.fountainpennetwork.com/forum/topic/307539-149-cap-threads-change-when/

[NoType]

1 hour ago, Karmachanic said:

https://www.fountainpennetwork.com/forum/topic/307539-149-cap-threads-change-when/

@Karmachanic Thank you for always having an on point link at the ready!

[OCArt]

@fpupulin

@Karmachanic

@Rowbo  Thank you all for the good info!

[Karmachanic]

1 hour ago, NoType said:

Thank you

 

[Karmachanic]

46 minutes ago, OCArt said:

Thank you all for the good info!

 

We duz what we can to help each other!

[Arcadian]

On 5/9/2024 at 5:01 PM, fpupulin said:

I can’t help with specifici dates, but based on my experience you do not need to thread your pen to the pen holder tulip in order for the nib to not dry. 
I have three 149 pen holders (resin with lead crystal), all with internal threads, which I constantly use with my 149s, Hemingway and Dumas. I just slip the pens in the holders, and I never had a nib that dried up in the tulip.

Actually, the last batches of the same pen holder produced by Montblanc for the 149 were not threaded at all, but smooth inside, just to slip the pen in.

Also, not having the pen screwed in, makes it immediately available for writing, which is a great advantage of a pen holder in the desk.

 

Wooow, seriously, fpupulin! You're spoiling us! What hath thou wrought with that Ernest and Traveler's! That drawing looks more like a very high quality etching than a drawing! Amazing!

 

 - P.