Stunningly pretty, probably mint red marbled Osmia Faber-Castell 882.   It's a piston filler, and the barrel has excellent transparency. Great imprints.  Comes with the box and papers. The nib is a 14 Kt, and a flexible medium #2.   4 7/8", 124 mm. 

Price: $250 with free shipping in the US

Cute little Merlin 33.   German button filler, with a wood-grain look. Fine Merlin 14 kt nib.  120 mm, 4 3/4" . For small hands!  Nice condition.

Price: $60 with free shipping in the US

Gorgeous, nearly mint green Faber-Castell 883.   It's a piston filler, and the barrel has excellent transparency. Great imprints.  The nib is a 14 Kt, and a rigid fine.   5", 128 mm. 

Price: $225 with free shipping in the US

I have one of these, mint in the box. It has a fine plated nib, piston fillers, blue translucent ink-view section to the barrel, and a nice box. Its a plain black plastic pen. Just over 5", 13 cm. Not fancy. I'd guess 50s or 60s as the era. (this is actually a 400, but the 125 looks very similar - I'll have the real picture soon).

Price: $65 with Free Shipping in the US

This the pen for collectors of pretty pens by obscure manufacturers. The nib is 14 kt F/M and the pen is just shy of 5" in length with a clear ink-vue section. The clip has undergone some repair - I wouldn't stress it too badly. The pen isn't a great writer, but has value as a really pretty pen from an uncommon maker.

Price: $60 with Free Shipping in the US SOLD