Italian Ice is an acrylic material which appears clear in some light, and features a lavender glow in UV light. Note that as the pen ages, it may develop "micro fractures" inside the material giving it a "cracked ice" look, so consider this as you purchase.
The Model 31 fountain pen encompasses features from several F-C models. The grip section is like that of the 40 Panther, the silhouette is a slightly slimmer version of the 19, precision posting like the 20, 45, and 03, cut grooves and recessed nib like the 20.
♦ Dimensions:
.625" cap diameter (15.87mm)
.531" upper barrel diameter (13.49mm)
5.50" capped length (139mm)
6.755" cap posted length including nib (172mm)
5.250" barrel length including nib (133mm)
.41-.47" thick grip section at thinnest and thickest point (10.4 - 11.92mm)
Weight without ink = .92oz / 26.0g
♦ Made in USA of long lasting, durable hard acrylic that is light weight.
♦ Standard Int'l Cartridge / Converter filled, one of each included. Also can be used as an eyedropper. Barrel holds approximately 3.5ml of ink when eyedroppered.
♦ #6 Size nib - with many tip options in factory or custom ground.
♦ Lifetime Warranty.
♦ Shipped with a Franklin-Christoph one pen zippered pouch and outer white box.