Two places I own have old fuse boxes. Here is a photo of a fuse and a
circuit breaker that came out of each respectively:
http://members.aol.com/tygr444/2fuses.jpg
Can circuit breakers be bought with pins the same as these? If so,
where?

Or should I scrap the old fuse boxes and replace with a newer type? If
so, why?

Thank you,

Jeff D