Hi, Rusty!
I'm having trouble posting...I type out what I want to say and then press 'Add Post' and it all disappears! Never to be seen again! I've done this twice now!
I am typing this in Word and shall try copy and pasting it - at least if it disappears again, I shall still have the original to copy.........
Chambers says that "pennyworth" means the amount that can be got for a penny - and "penny arcade" is an amusement arcade with slot machines originally operated by a penny.
Whilst I was looking for this, I found a phrase I have never come across before......
"penny-plain, twopence-coloured"
Have you ever heard this?