COLUMBUS 55 crazy red lined celluloid

This Columbus 55 button filler is manufactured in a very unusual red lined pearlescent celluloid and has a chrome colored metal finish.
The nib is 14 ct gold, marked Columbus Extra and it offers a very pleasant and smooth writing. There is very limited flex in the nib but it is really smooth.
The pen is very light in the hand and really enjoyable to write with.
Time of production: late 1940's