51 Nib Widths

[PenBuyer1796]

I have seen a factory block that measured the widths of the P51 nibs at the factory, does anyone have the precise widths from calipers on XF, F, M, B, BB nibs?

[FarmBoy]

It varies a bit from block to block and depends a lot on how you measure the nib.

[FarmBoy]

It would also take multiple blocks to test across that range.

[PenBuyer1796]

Interesting, thank you for that Todd.

[welch]

It would also take multiple blocks to test across that range.

 

Ah, but it would settle the (perpetual) question of whether the "English" 51 had a slightly wider nib at each style than the US version. I think Newhaven made thicker nibs, or, at least, that an English medium is wider than a US medium.

[FarmBoy]

 

Ah, but it would settle the (perpetual) question of whether the "English" 51 had a slightly wider nib at each style than the US version. I think Newhaven made thicker nibs, or, at least, that an English medium is wider than a US medium.

I've never seen what can be attributed as a "Newhaven" "51" nib grader. I suspect they exist they were made from the same drawing that was used in Janesville. The 'size' is a hand etched grid on the left side.

 

Attached is a picture to serve as reference. Note the guides could be easily adjusted at manufacture as well as yesterday.

 

[hari317]

what was the purpose of these guides?

 

to serve as a "go/ no go" gauge to weed out the out of spec tips from a specific width production order?

 

or to sort nibs into width bins from a mixed production lot?

[FarmBoy]

what was the purpose of these guides?

 

to serve as a "go/ no go" gauge to weed out the out of spec tips from a specific width production order?

 

or to sort nibs into width bins from a mixed production lot?

Determine nib grade