It was pure luck to find this, we had no idea what it was and we only bought it to resell on ebay. I only thought of it as a pen material when the idea came up on IAP.
Now that I know that there is a collector market for old bakelite items I think it is possible that it would have been worth more as a spoon than as a pen. We haven't found any more, but am always looking.
The golden rule of shopping flea markets and garage sales for treasures to sell on ebay: For every item you buy for .25 and sell for $100, there will be 100 items that you buy for $1.00 and throw in the trash.