Keith, I would like to Thank You for posting the picture of the Eye Brand Office knife and asking the questions about it. Paladin has answered the questions perfectly, right on target. As just a bit of additional info. the Office Knife was listed as a model 240Y in some of the older catalogs. Your post and Ray's replies stirred me to go out into my safe and retrieve a knife roll that had some of the other color variations of the model 240 that were in my collection. They are posted below, including Aqua, Red, Black and Dark Green.
Now for the Thank You. When I opened the knife roll, the first thing that jumped out at me was a nice old model EY 4 3/4" Stockman in yellow composition handles that had off-gassed in a terrible state. This was signigicant to me from serveral perspectives besides losing a great old knife.
Several of us have experienced the off-gassing effects of celluloid handled Eye Brands, particularly the cracked ice versions of various models. I have numerous Eye Brands in the yellow composition handles and have never before seen a completely off-gassed example. I have seen some minor shrinkage but not off-gassing. The only good news to this was that none of the other nearby knives were affected. I'm going to have to rethink how the yellow handled knives are now stored, probably out of the knife rolls and into large cigar boxes or humidors. Hope no one else has experienced this in the yellow handle Eye Brand and Carl Schlieper knives.
Thanks again,
Joe D.

- Model 240 Assortment

- Eye Brand EY Off-Gassing