Per McCormick's web site, all Schilling products are at least 7 years old.
The expiration date is on the bottom of the container.
The best way to check a banana for freshness is to look at it and examine the skin, which should be yellow, for black spots. The banana should also have a particular fresh smell and should be firm to the touch and not mushy.
A person check the expiration dates on spices by examining the label or the rim of the canister. Generally, a date will be published in either of these places.
Euro - before that: Austrian Schilling (ATS). for more information check out www.oanda.com
Check out the German Gun collectors web site. Your gun was built by Schilling in Shul which is Germany
Easy answer is 'check your owner's manual,' harder answer is 'depends on the country it was manufactured for, and the year it was manufactured.'
I know that you can check with www.wisnersinc.com... they may help you identify when your unit was manufactured.
Eggs are good because they have high protein. If you buy eggs from a local farm (they often sell farm eggs at the grocery store) they are fresh, and freshness is also a great factor with eggs.
You do not need a license to sell homemade spices but you could be looked into if you become too large. It is important to check the local laws.
Check the Blue Book of Gun Values
Please check your coin again and post a new, separate question with its date and whether the "50" refers to groschen or schilling.
A meat technologist ascertains meat quality. They check that the meat is good and free of disease. If there are diseases they investigate the cause. They also check chemical content and freshness. They ensure meat is top quality.