Section 96. Except as otherwise provided in sections ninety-eight and ninety-nine and in chapter ninety-nine, or except when sold in the original standard container, all fruits, nuts, vegetables and grain shall be sold at retail by avoirdupois weight or numerical count. The words ''original standard container,'' as used in this section shall mean and include only barrels, boxes, baskets, hampers or similar containers, the dimensions or capacity of which is established by law of this commonwealth or by act of congress, the contents of which have not been removed or repacked by the retailer, and upon which is plainly and conspicuously marked the net quantity of the contents thereof in terms of weight, measure or numerical count. This section shall not apply to the sale of apples repacked under the provisions of section one hundred and four nor to the sale, by the bunch, of fresh beets, onions, turnips, rhubarb and other similar vegetables usually and customarily sold by the bunch. Whoever violates any of the provisions of this section shall be punished by a fine of not more than ten dollars or shall be subject to a civil citation as provided in section 29A of chapter 98.