As much as can be bought or sold for a penny. Frequently with partitive of or (in Old English) genitive.

As much as a halfpenny will purchase; hence, a very small quantity.

An amount or quantity which is or may be bought for a shilling; as much as is worth a shilling or a (specified) number of shillings.

As much as is worth, or costs, three-halfpence.

As much as is worth sixpence; an amount which is or may be bought for sixpence.

With preceding quantifier: as much of something as is valued at or may be bought for a specified (or roughly quantified) number of pounds. In…

As much as is bought or sold for a groat. Also figurative a small amount.

A pennyworth. Obsolete. rare.

(a) a piece of any commodity sold for a penny; (b) a piece of money of the value of a penny, a penny coin.

The quantity that is worth, or costs, threepence.

As much as a pice purchases; (also, more generally) an amount of negligible value.

As much as is worth or costs twopence. Frequently figurative, a small or contemptible amount. See pennyworth, n.

Sixpennyworth.

A bank note or other article of the value of a specified number of pounds sterling. Now rare.