The number 431 is a relatively common box type grinder. It is medium height and has the handle built into the metal top on it. The label on the front will be dark Red in color.

They are found relatively regularly on eBay along with other similar versions.

If one is in very good condition it is maybe worth $75 - $100 to a Charles Parker collector.

For those using Parker coffee grinders, how effective are they? What wears out/down enough to make them useless, and how does one evaluate that?

i have been grinding our morning coffee with the one shown earlier in this thread for many years. and although still in good condition, it had seen use before, it still works great, no issues, the granddaughters loved doing it when they were little.

but- we use a french press which likes the coarse grind this style grinder produces, not sure about some electric drip makers.

I use my #700 to grind corn for the deer who trespass in my yard. I have heard that whole corn is not good for them. Who knows?

I'm a non-electric dripper, have a cone-shaped ceramic cup to hold filters and pour hot water over that. The ground coffee I buy is on the fine side, not dust by any means, and have no experience with coarse ground coffee. One way to find out, I'll keep an eye out for a mill. Appreciate the help.

Ground corn is worse because it increases the surface area available to the microbes in the rumen (stomach) of the deer resulting in more gas production and increased rumen acidity...deer were born to browse forbes, not eat high energy cereal grain. Whole corn at least passes through the digestive tract at a more rapid rate and has less time for exposure to microbes.

The only advantage to the "cracked" corn is that it is harder for them to eat!

Coffee Grinders
 

Are Charles Parker Grinders different from Parker National Grinders? See both on ebay.

Yes they are not the same maker.





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