Answer: Seeds "packaged for 1992 Season" may still grow but shouldn't be relied on. They should be safe. Some seeds are viable for only one year such as onions while others may still be good for 5 or more years such as tomatoes. You don't know what conditions they have been stored under which is very important to seed viability. If you want to play around with them, do a germination test by placing the seeds in a moist paper towel, placing it in a dark, warm room and checking the number of seeds germinated after one week. If the germination percentage is less than 70%, I'd say throw them out.
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