Not so old. The three figures on the left of the photo are Parkfield Miniatures F&IW Indians. They just happen to be from a 25mm line. They're currently in production, so buy as many as you want. There are also other poses available:
http://www.parkfieldminiatures.freeservers.com/The guy on the right of the pic, dancing with the warclub, is an Old Glory F&IW Indian who's been slightly customized, his right foot has been cut free from his base and his left leg has been bent more, to put more action in his pose.
The OG F&IW range are sometimes called 28mm scale, but I judge them to be a 'robust' 25mm line. If you look closely, the OG casting is a couple mm taller than the Parkfields, considerably bulkier, and has a different scuplting style. I'd use them together though, because I like to field a wide variety of figures.