These single basin taps were made by Central, and they’re the “Quickpression” model. They have a Patent date of 12-26-1909, but could date anywhere from ’09 up to WW1. Inlet threads are an oddball size, but the correct supply nuts are included. You’ll want to use either a bullnose semi-rigid supply or a 1/2″ OD rigid supply. Flex lines will NOT work with these faucets. Two have been fully rebuilt, and the third one is included as a parts unit. The stem on the parts one is worn… When attached to a lavatory sink, the only metal parts exposed are the handle screws. The spout base is 2 7/8″ wide, and the spout extends out 4 1/2″ from centerline of inlet to tip of spout. These are really cool faucets, and are the only set we’ve had in the last 20 years. Grab them quick!