Waterman number 8 - Maybe ?

[MarcoA64]

My great-grandfather was given this pen buy one of his patients after a visit, as he didn't have a pen that day give the urgency of the summons, to write a prescription. The year was 1939, Minitry of Interior, Rome.

I admit that I have tried using it but it is a bit too wet.
I've read on Waterman's pens on Lambrou's book but this pen is a complete mistery to me.
As is the colour pattern which seems one of the early years one.
For instance when was the 'clip clap' inscription removed / added to the clip ? Mine has Waterman's

61324
61325
61327
61328
61330
61329

Ideas ?
Thank you
Marco

[kirchh]

It appears to be a bandless Waterman 58 in black chased hard rubber. Check the bottom end of the barrel for the model number.

[MarcoA64]

this is what shows on the bottom of the barrel, too faded.

61331

[da vinci]

Whatever model it is, it is a fantastic pen! 👍

[FredRydr]

Rotate the photo counter/anti-clockwise 90 degrees for a ghostly “58”.

[guyy]

I’m inclined to say that if it has a #8 nib and is a BCHR Waterman lever filler, it has to be a 58.

[kirchh]

“58” is visible, as expected.