Thank you! The table, extension, and machine are still in the car- will bring them in tomorrow. I didn't find any number on the table after cursory examination, but it has black wood trim and black metal legs. The wooden finish on the top of both pieces of the table is worn. The insert size is 8 3/8" x 19"- exactly as described on the Ismacs site, which should fit models 15, 99, 128, and 201. The extension is marked with a Singer label as a 311 1/2, the insert has B006616 stamped into the underside. The manual with the machine is for models 99-23 and 99-24. There's a bit of rust on the black metal table hinges, but the machine looked nice, with a silver endplate. The case was in good condition. I'm looking forward to cleaning everything up later this week.