PARKER 51 AEROMETRIC FOUNTAIN PEN - MkI, MkII, MkIII.

Here we show the three variants of the Parker 51 Aerometric fountain pens and the small differences between the models. The three models are the MkI, MkII and the MkIII. Very nice examples. Please support my work at http://www.paypal.me/grandmiapens Ebay at https://www.ebay.co.uk/usr/welcome2stay Email at grandmiapens@gmail.com