I found a few coins on my first couple of swings under my front steps. I had a fair idea they might be there after years of pulling keys and coins out of my pocket at the same time.
Well done DD, you'll find people do the same at parks and beaches, I'm sure you'll find quite a few more when you get out there .. the 705 works well for such items.
I've used mine in the goldfields (knowing it's not a "true" gold machine) and whilst I've not found the yellow stuff I more than kept up with those swinging a GPX in regard to bullets nails, wire and such.
Good luck, Tom