This section is from the book "The Gardener V3", by William Thomson. Also available from Amazon: The New Organic Grower: A Master's Manual of Tools and Techniques for the Home and Market Gardener.
The best vegetables are of course the following: Potatoes, Peas, Cauliflowers, Artichokes, Scarlet Runner, and dwarf French Beans, Celery, Vegetable Marrows, Tomatoes, Leeks, Cabbage, Carrots, and Onions; and from these you may be able to furnish a good collection. Quality, and therefore fitness for table, is a great point with good judges - not mere size. "A basket or box of vegetables cotaining ten varieties" could include two or more varieties of Onions, or Peas, or Potatoes, in making up the sum of ten varieties, but it is always best to have ten distinct kinds, all of the very best quality. Add to quality cleanliness and a nice arrangement, showing you have judgment in selecting and taste in making the best possible display, and you will have done a good deal towards getting the first prize.