Nice yard sale find!
It appears that you have a "Jazzette" kit. But....check the bass drum shell depth again to see if it isn't a 12 X 18. If it's a 12 X 18 and not a 14 X 18, then you have a very valuable bass drum and kit.
The "other" tom is a B/O badged drum which was likely added on at a later time.
Just the bass drum, small tom ( 8 X 12) and the floor tom (14 X 14) would make the Jazzette configuration. That's where the value is. For this set, the added 13" tom is pretty worthless. Also, someone added an extra arm to the railmount consolette. That needs to be taken apart and put back to normal.
So...if the three drums are in good shape, you have an extremely valuable kit -one of the rarest Ludwig configurations!
The next time you and your wife go yard-sale-ing...take me with you! :)Burger Kin