Based on the motif and the overall looks. I would say those are some wonderful Tourist Souviners from a tropic visit. Age and Value guess would be somewhat hard to establish. Post 40's for sure, but pre 70's would be the range I would place these lamps. Value would be what a good collector of lamps or Tropic motif seeeker. Marble base is a boost but just a bit, these are wonderful unique looking but have Tourist written all over them.