Mills 0.5c Castle Front Slot Machine circa 1930's 100% Original

I have a beautifully restored what I believe is in 1930s Mills castle front slot machine. All original from what I can tell.

The slot machine was restored about 10 years ago and kept indoors under a cover. Everything seems to be operating as it should except for the payout , from what I was reading. This is a common issue and a simple adjustment.

Please feel free to message me with any questions.