Definitely the makings from a doctor. I have a couple old doctor's bags I have filled with all kinds of medical equipment when I was the doctor for camping trips for  our local Boy Scouts troop. I had it packed with all kinds of goodies I might possibly need for back woods adventures.

Dr. Hudson's "Shooting Bag" looks like a doctor's kit for shooting sports.

I especially like the bottle of gasoline to clean the barrel out of oil before shooting. Very handy!

Very nice. Thanks for the enlightenment!