Parker mutation:

Here are some photos of Parker 21s I have been cleaning up.

Of the five I got, one has a "different" filler. I thought at first that the only issue was that the metal framework was missing, but that's not it. The threads are different on this pen. It came with Parker 21 casing and cap, but the threads are very snug, as if it wasn't mean to be a true fit. After cleaning and filling, it writes nicely.

Does anyone know what this is?

let me see the nib area

The nib is turned sideways, but seems to be identical.

I lied, I lied. The nib on the odd one is shorter!

the nib, feed, clutch ring and hood on the odd one looks like to be from a parker 51

what has happened to the filler on the partial 51 is beyond me...maybe it is just missing the aerometric cover?

jochums said:

the nib, feed, clutch ring and hood on the odd one looks like to be from a parker 51

Click to expand...

jochums said:

what has happened to the filler on the partial 51 is beyond me...maybe it is just missing the aerometric cover?

Click to expand...

Yes and yes