A No 1 nib Swan self filler fountain pen. This pen is 1940s production and might be described as an "austerity" model being plain and simple. 
The great thing about Mabie Todd is that the company never compromised on quality.  
The pen is well made.  Condition is very good with just some minor marks at the end of the barrel  The cap closes securely in  less than a couple of turns.
I have of course fitted a new sac.
Typically of Mabie Todd, the fine nib is delightful and is flexible.  Please see my writing sample in my second photograph.

I am a member of the Writing Equipment Society; please review my seller feedback and do see the other pens I have for sale this week.
Overseas buyers will be liable for local import duties, VAT etc.  I will not understate the value of items.  Items going overseas will be shipped via Royal Mail International Signed service and tracked where possible (most countries).
I am happy to combine postage on multiple purchases and I always use recycled packaging.
Thank you for your interest