Antique Buffet and China Cabinet

I have an antique sideboard buffet server with mirror back splash shelf made by McElveen's of Pittsburg, and also an antique china cabinet with skeleton key, which I don't know the company name.  Varnish is wearing a litle thin on both items.  (Wow! Mom put wall paper on the buffet doors thinking it would be cute.) China cabinet has a scar on right side and missing top glass panel. I would like to sell them.  Can you give me an idea of  the make and year, and price?  These were my mother's who passed away two years ago at age 83.  She had them when I was a little girl, and now I'm 51.  Items are in Tampa Bay, FL.

Fair