That's interesting! I wonder who made it. Mine is a Sofabex. Does the 1/4 barb have a tiny ID?
Sofabex is an interesting company. 25+years ago, when I worked for Carter Carburetor in St. Louis, Sofabex was interested in partnering with us to market electric fuel pumps for injection applications, which we made and they didn't. I did a ton of flow testing of our pumps for them. They were a very congenial, family-owned company with their headquarters in their house. Very pleasant and very French.