Two are Cado Flo-Master refillable markers from around the 1950's made by Cushman and Denison in the USA. Esterbrook bought the company out in the mid 50's and started to mark the pens with their name. Therefore, two of the four markers were likely made in the 50’s or earlier. The one with the black cap, I think is the oldest one. The two Cado markers, likely have aluminum bodies. I did not do testing on the metal so forgive me if I’m wrong.

Two of the markers are clearly marked Easterbrook. They are both looking identical on the outside. The markers underneath have two different types of heads. One seems to be a very broad head and the other one just seems to be aregular felt head.

I was able to write something with the older black topped marker. I was barely able to write something with the all silver, Cado.

I was not able to get really anything from the two Easterbrooks. This is likely because the ink is very dried in those two models.

One of the newer Easterbrooks seems to have some cracking near the head of the marker. I almost missed that. I did take photos and circled it, because it’s difficult to see with the reflection of the of the marker. I decided to keep it with the four markers because you never know, it could be used for parts. I’m sure these are not able to be found easily.

With the top off, they all have a certain scent to them such as maybe paint or a strong marker. I will be mailing them and vacuum sealed bags. Since I don’t know what the actual markers have in them, for safety sake, I will probably have to mail these ground shipping.

It works by depressing the felt(?) tip and ink is released, I have managed to get one to write, if not well, but it did write.

I would imagine with service they will work fine.

Please review all pictures, as it is part of the description and these are the exact items that you are purchasing.