You are probably not aware that at bakers' shops in the poor quarters the price of the half-quartern loaf varies sometimes from week to week.
"New Grub Street" by George Gissing
That will be a sad drawback from the delights of a two-shilling quartern-loaf.
"The Mirror of Literature, Amusement, and Instruction, Vol. 12, Issue 326, August 9, 1828" by Various
Cut into eight half quarters a quartern loaf, two days old; it must be neither newer nor staler.
"Enquire Within Upon Everything" by Anonymous
At one period the quartern loaf had risen to 1s.
"Blackwood's Edinburgh Magazine, No. CCCXLII. Vol. LV. April, 1844" by Various
In November, 1799, the quartern loaf was sold in London, at 1s.
"Showell's Dictionary of Birmingham" by Thomas T. Harman and Walter Showell
Part of Jorrocks's half-quartern loaf was bartered with the captain of an East Indiaman for a slice of buffalo-beef.
"Jorrocks' Jaunts and Jollities" by Robert Smith Surtees
Yet in 1766 the quartern loaf in London was 1s.
"A Short History of English Agriculture" by W. H. R. Curtler
On this the sergeant ordered in breakfast for us, in the shape of a half-quartern loaf and two ounces of butter for every four recruits.
"Taking Tales" by W.H.G. Kingston
On March 5, 1801, the price of the quartern loaf stood as high as 1s.
"The Political History of England - Vol XI" by George Brodrick
Shop-windows were stoned that night in south and east London; but twenty-four hours later the price of the quartern loaf was 1s.
"The Message" by Alec John Dawson