The Parker Pastel first appeared, in 1926, in solid colours with a single raised cap band, as in this pen.  In early 1927 the band was replaced with two bands infilled with black and a moire effect was added.  The 1st. generation pen had a very short production run, always a good sign for collectors. 

The pen was intended to be a 'ladies pen' and was also produced as a ring top, this is the less common version featuring a washer clip.

At 111mm. capped and 134mm. posted,  it is a small pen but is perfectly comfortable in the posted configuration.  It is very much a scaled down Duofold in appearence.

Finished in Coral, the pen carries the clear barrel imprint:

                                  Geo. S. Parker   Lucky Curve  Fountain Pen