It's 100-A, I think. On the bottom, Eveready is easy to make out, but the model number is about worn off. I haven't seen too many blue ones so I was happy to add this one to my collection. It has a 21mm Aceshaving Best Badger knot set deeper to add a little stiffness. I shaved with it for the first time this morning.
Ronnie



Ronnie