Stanley compass plane

Can anyone tell me about my compass plane. I have had this plane for many years and used it regularly in my furniture business didn't think anything of it. Now that I have retired and I look at thing's differently I wonder if anyone could tell me the age of or anything else about this plane it is a No.113 compass plane with Stanley rule and level co. cast on the adjusting knob.
Regards Rod.:?

I think there are a few different types of the 113, You might find it worthwhile to check out Blood & Gore to seek exactly what you have. Prices on Ebay seem to be lower than I would have expected.