I have been buying and selling (more buying than selling) Schrade USA knives on Ebay for three years. I pay attention to going prices. For the most part, it has been folding knives, and have accumulated over 250 of them, and have probably sold 70 or 80. I have not spent nearly as much time on fixed blade knives. It appears to me that the price when you sell on Ebay depends on a few things:
1) How is the item listed in title?
2) How is the quality of the pictures?
3) How bad does more that one person want the knife?
While some patterns are hit or miss, the price going now for Schrades is good, and better than ever, on the average. USA Schrades are becoming more scarce. That being said, Ebay is unpredictable, both on the high and low side of pricing. I still pick up one every now and then at a silly low price for no apparent reason. I contend that well pictured examples, with a 7 day auction ending on Sunday, and start the bid at 99 cents, will bring the best price. Make sure to put Schrade USA in the title of the listing. A high starting price or a reserve is the kiss of death, for getting multiple people bidding on a knife. Listing more than one in an auction is not recommended either, unless they are used dogs. For the most part, I only deal with knives that are in excellent or as new condition, unless I want it as a user.
Hottest production items are the ones in brown boxes and the ones in plastic tubes (of course older than that being better is a no brainer). I agree with Codger the pre 1973 Schrades are highly sought after. I have noticed many new Schrade collectors get into it with Old Timers and Uncle Henry, only to realize that those great knives were only the tip of the iceburg. Then before they know it, they are in over their heads. I speak from experience.
I would also recommend if you are selling a large number, to only list 5 or 6 per week, to help develop a following. If you get someone who really likes your knives and trusts you, they may only be able to buy one or two at a time. If you have multiples of the same knife multiple times to sell, use the 2nd chance offer. It usually works if you sell the first one for a high price.
Thawk