Appraisal Approximator
Enter your pre-1985 make and model info to the "Equipment Model" field
This will show a quickly filtered list of items (based on your equipment model text) at sold or for-sale prices on items in working condition. Or you can just browse any of the sites yourself.Enter a realistic price (e.g. what you would like to / might expect to get for your item) into the "Current Market Value ($)" field based on an approximate average sold-for and for sale prices you find for gear in similar apparent condition to yours. Keep in mind differences in prices based on included items such as lenses, flashes, cases, etc.
Select the Equipment Condition Grade button that you feel best applies to your equipment.