Hi everyone! This is an insulator discover by me in in the wild. There are less than 8 known and for sure this is the second best I got. The condition is NM with some flea bites on the crown but if you need a video I can send it happily.

It took the CD number last year and there are 2 known embossings, the one on the pic, FCSF 231 ISOREX and the other one: 231 FCSF ISOREX

Dimensions: 2 1/4" X 2 3/4" (56mm X 70mm)

(front skirt) ISOREX

(rear skirt) FCSF / 231

The FCSF (Ferrocarril the Santa Fe or Santa Fe Railway) was founded in 1885. In 1888 was bought by french capitals, that's why the imported all the supplies from france. This is the smallest of the group follow by the 233 (CD 445), 234 (CD 445.2) and 235 (CD 445.4). Model 232 is still to be found.

The price is $250 shipping included to the US. If you add more insulators on the shipping you have to pay the difference.

SOLD