Early belts will have that leather loop. Later belts have the brass adjuster. A lot of times they were discarded though. The buckle is mid to late war. You would need a puppy paw style to really go with the belt as far as an early set but there's nothing wrong with what's in it. It's real and that's what counts. Prior to these belts styles the belts were white and had baby plates on them. Buff leather belts were dyed black for the regulations and usually when found now are brown from oxidizing