Searching for Sash repair kit for 15P72

Hello! That's a funky code. Can you confirm that? Does it say "15P72" exactly? Is there anything else? Also, how long is the metal bar? That's key.

We'd like to see some clear photos of the pointy top attachment. We can see the bottom attachment really well in the one photo, but we need a similar photo of the top in order to narrow down what this is.Once we confirm that information, we can track down the right product for you.