Dating Montblanc 149s

[Seney724]

On 10/4/2010 at 11:57 PM, hari317 said:

Excellent chart David, once completed it will be an excellent resource. Under barrels you might want to add celluloid for the 50's decade. Early to mid 60's early plastic barrel's filling system was press fit filler with higher ink capacity.

This thread is such a great resource, especially the chart created by @DKbRS.

 

This information might be buried in here somewhere, but can someone tell me:

1.  What year the 149's made the transition from celluloid to resin?

2.  What year the 149's two thin cap rings transitioned from sterling silver to gold?

 

Thanks!

[Seney724]

On 10/4/2010 at 11:57 PM, hari317 said:

Excellent chart David, once completed it will be an excellent resource. Under barrels you might want to add celluloid for the 50's decade. Early to mid 60's early plastic barrel's filling system was press fit filler with higher ink capacity.

Duplicate post.  Sorry.

Mod, please delete this one.

[AcLondon]

57 minutes ago, Seney724 said:

This thread is such a great resource, especially the chart created by @DKbRS.

 

This information might be buried in here somewhere, but can someone tell me:

1.  What year the 149's made the transition from celluloid to resin?

2.  What year the 149's two thin cap rings transitioned from sterling silver to gold?

 

Thanks!

Think 1959 is considered the end of celluloid and silver rings era and beginning of resin and all gold rings era. 

[Seney724]

How about the piston turning knobs? 

Once the production of the celluloid 149s ended and MB moved into the era of the resin 149 have those resin piston turning knobs changed at all in terms of shape, size, etc?

Or, are they all interchangeable?  To mean, for example, can any resin piston turning knob from 1960 (+/-) to 1990 (+/-) be interchanged with any other regardless of decade of production?

[stoen]

I believe the answers to the recent questions are clear from the chart and other posts in this thread. To put it short:

 

The first plastic (resin, rolled gold cap rings, friction fit mechanism) is considered 1962-1966(?). In 1967 already appeared the second generation plastic model (screw-in mechanism) and stayed there all the way through the seventies.

The celluloid pens had a wholly different metal “telescopic” piston mechanism. No knob or any other part except for the nib, feed and collar are interchangeable between celluloid and plastic (1962-1981) models of 149.

 

For resin piston knob-and-spiral assemblies I know that they’re interchangeable for 149s made between 1962 and 1990s. For later I’m not certain, but it can be found out within this thread.

Here’s a photo of the knob and the piston driving helix spiral assembly, in resin 149 models. In some later models the spiral is black, but is functionally the same.

 

I don’t know if there has been a year or so production gap between celluloid and plastic (resin) 149.

 

Hope this can help.

 

Edited February 23, 2023 by stoen
photo added

[Seney724]

4 minutes ago, stoen said:

I believe the answers to the recent questions are clear from the chart and other posts in this thread. To put it short:

 

The first plastic (resin, rolled gold cap rings, friction fit mechanism) is considered 1962-1966. In 1967 already appeared the second generation plastic model (screw-in mechanism).

The celluloid pens had a wholly different metal “telescopic” piston mechanism. No knob or any other part except the nib, feed and collar are interchangeable between celluloid and (1962-1981) models of 149.

 

For resin piston knobs and spiral assemblies I know that are interchangeable for 149s made between 1962 and 1990s. For later I’m not certain, but can be easily found out.

 

I don’t know if there has been a year or so production gap between celluloid and plastic (resin) 149.

 

Hope this can help.

Thank you!  Yes, it helps!

 

[Barry Gabay]

9 minutes ago, stoen said:

I believe the answers to the recent questions are clear from the chart and other posts in this thread. To put it short:

 

The first plastic (resin, rolled gold cap rings, friction fit mechanism) is considered 1962-1966. In 1967 already appeared the second generation plastic model (screw-in mechanism).

The celluloid pens had a wholly different metal “telescopic” piston mechanism. No knob or any other part except the nib, feed and collar are interchangeable between celluloid and (1962-1981) models of 149.

 

For resin piston knob-and-spiral assemblies I know that they’re interchangeable for 149s made between 1962 and 1990s. For later I’m not certain, but it can be found out within this thread.

 

I don’t know if there has been a year or so production gap between celluloid and plastic (resin) 149.

 

Hope this can help.

You, sir, are a living encyclopedia. Although I have owned and used 149s for more than 40 years, and have done a fair amount of research on this great model, I believe you have forgotten more than I ever knew. We all learn something new and important with each of your contributions. Thank you, stoen. Be well.  Best wishes, Barry

[stoen]

2 hours ago, Seney724 said:

Thank you!  Yes, it helps!

I also don’t know if the manufacturing and marketing dates of “friction fit”(1962+) and “screw in”(1967+) models possibly overlapped. I had some conflicting information on this, so they possibly did…

I wrote everything to the best of my knowledge.

 

2 hours ago, Barry Gabay said:

Thank you, stoen. Be well.  Best wishes, Barry

 

Thanks for your kind words. You are the one to be thanked to @Barry Gabay, for your serious recearchers spirit, supportive, positive attitude and quality of your thought in this Forum. Best wishes, 

@stoen

🙂

[jayKellner]

The pen for the desert island???

[lampwater]

I have what may be a pre-1990 pen, but it's hard to tell. Made a separate thread with detailed photos: