Yes, it's the traditional 2-post Scott Specialty binder. You can buy a brand new one, but only in 3" width, from AmosAdvantage (dot) com -- or from other sellers like Subway Stamp Shop or Potomac Supplies, and others. You can also find used ones, sometimes in other widths and often in good condition, on
eBay. You can also buy blank Scott Specialty album paper to make more pages.
I see you've printed the information out on a piece of paper which you've then attached (with corner mounts) to your album page, and so on. I like home-designed pages since they add a real personal touch preprinted album pages lack. If I could make a suggestion -- you could create a more integrated page, one that looks even nicer, if you'd print your information directly on the page. A normal-sized computer printer won't print paper of that size, but you can print from your designed original onto almost any blank paper using a photocopy (Xerox) machine.
First design what you want on the page as you have there, using either a typewriter or perhaps a computer. Print it out and go to your local photocopy place (Fedex for me).
Put your "original" face down on the glass.
Into the side hopper of the machine (for larger sized paper), put your blank Scott Specialty pages. Be sure to "fan" them once or twice so the machine doesn't pull more than one sheet through at a time. Insert the blank pages face down and with the hole-side outward.
Disable all the other paper drawers by pulling each out slightly so they can't feed paper.
On the keypad enter "custom" for "paper size" and then the size of your blank paper (10" wide, 11.5" high). It took me awhile to figure this out through trial and error. I'm not good with machines.
Then print one page. You may find you need to adjust the location of your original on the glass, typically more left or more right, in order to center it perfectly inside the page border. So be prepared for one or two test pages in order to get it right. Putting a blank sheet of paper over any exposed page edge that results from moving the original will help prevent shadow lines from ending up on your page.
You will produce a neatly-printed page that looks professional and can do as many as you want if you design other originals. Cheap and easy to do. Have fun!