Figuring Out the Value of a Disneyland 45

[MickeysImagination]

What is the catalog number on the record?

[imthewalrus79]

Hi. I have an old 45 record that was purchased at Disneyland Park back in the 1960's. It has "There's a Great Big Beautiful Tomorrow" on Side A and a Medley of Disney Hits by the Disneyland Band. It's not a 45 that I've seen too often online and I was wondering if anyone knew of any way that I could figure out the average value of it. Thanks very much for any help you might be able to provide.