Why go
Choose tools you will actually use rather than the largest model. Compare blade size, scissors, screwdrivers and weight, then confirm warranty and manufacturer markings. The most important travel constraint is simple: knives cannot go through airport security in cabin baggage, regardless of how traditional they seem.
The full story
The familiar folding knife is valued because several compact tools share one handle. That versatility also creates the main buying decision: each added tool increases thickness and weight. A basic model may be more useful for daily carrying than a large collector version. Check genuine manufacturer markings and buy from a retailer that can explain warranty service. Engraving or custom scales change appearance, not function. Travel rules matter immediately after purchase. A knife is a blade, so it should be packed in checked baggage for flights and handled according to the laws of every country on the itinerary. Do not assume a souvenir exception at security. If you are traveling with cabin baggage only, arrange compliant shipping or postpone the purchase. Keep the receipt and packaging until the journey is complete.