I have an incubator, have used it a few times, limited success. I have been reading all I can on this forum about incubating eggs and am studying hard. I do not know the model, nor make, nor year this incubator was made. I have had it 3 years, I suspect it may have been several years with the previous owner. There is nothing that I can see on any part of the incubator that indicates anything. It has three racks with three trays on each rack. Each tray holds about 22 regular sized chicken eggs. All the topics I am reading indicate that the individual who is using an incubator should refer to the owner's manual for specific instructions, for example, as pertaining to the openings on the vents. This aspect of incubating I am very confused about. I need assistance. Does anyone here recognize this incubator, a name, specific model number or anything would be of great value. The pictures that I have imbedded may nor may not help. Elaborate please. Have a great day, CynthiaM.