Do not know who made the lamp. As you can see it is well lighted and the pump is pumping the mineral oil to give the rain effect. You may notice that the oil has a slight tint to it.
It had accumulated a lot of dust and was dirty. When you receive the lamp you will need about a quart of food grade clear mineral oil added before running. It is very simple and you can google it for the "how to". This is a hanging lamp so you can hang it to the view you prefer. It has a push button switch on top.
This is a bronze colored metal housing. I would call the center statue a Greek goddess but she may be an Italian goddess. I should have done a close up but forgot but if you look at the last photo and scroll the enlarged you will see some engraving at the base of the statue. He is an Italian sculpture artist. This lamp is approx 30 in length.
There is plenty of electric cord interweaved in chain. The item "Vintage Rain Motion Lamp Hanging Swag Style Working" is in sale since Friday, February 14, 2020. This item is in the category "Collectibles\Lamps, Lighting\Lamps\ Electric\Motion Lamps". The seller is "firstinlineco" and is located in Hollister, Missouri. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, South africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Chile, Colombia, Costa rica, Panama, Trinidad and tobago, Guatemala, Honduras, Jamaica, Antigua and barbuda, Aruba, Belize, Dominica, Grenada, Saint kitts and nevis, Saint lucia, Montserrat, Turks and caicos islands, Barbados, Bangladesh, Bermuda, Brunei darussalam, Bolivia, Egypt, French guiana, Guernsey, Gibraltar, Guadeloupe, Iceland, Jersey, Jordan, Cambodia, Cayman islands, Liechtenstein, Sri lanka, Luxembourg, Monaco, Macao, Martinique, Maldives, Nicaragua, Oman, Pakistan, Paraguay, Reunion, Uruguay.