Two examples of the same model can tell different stories

In collecting, a “duplicate” may be useful when it documents a transition, variant, different market or materially different configuration.

Before buying a second example of the same model, define what new information or experience it adds.

If the difference is purely cosmetic and outside your collecting criterion, you may tie up budget and space without meaningfully expanding the collection.

Direct comparison of several examples is also an excellent way to recognise production differences and later interventions.