antique typewriter

[cin]

cleaning out my attick found an old typewriter. all the keys work. It is a Remington, miracle Tab, Quiet-Riter and it is in a brown hard case lined with dark green felt-like material. It is in excellent shape and I am wondering what it is worth and where do I find the serial numbers??

Thanks

[D&b antiques]

the type writer was mfg, in 1953 sell's in the $ 50.00 Dollar range.