I've been on a vintage Esterbrook kick lately. I'm now looking for nice examples of the Transition and the Pastel Purse pens. I'd also like to find a $1.50 pen with the cracked look. Here are the ones I am writing with today. I've added new sacs to two of them already.
The last two on the right are from Osmiroid.
Let's see what Esterbrooks you are writing with today.