There are many products in Jaguar series, for this one you mentioned (and those with same shape but different patterns) it doesn’t worth that much and it’s not that hard to find them on Japanese market, a year ago, I bought four different etched type Jaguar one after another on Yahoo, either mp or bp, none of which cost more than 2,000 yen.
But then their prices started to go up, and it even went crazy for a little while(I don’t think it will stay high forever) and now a relatively good price is maybe around 3,000 yen?
Or consider using ‘jaguar ペン’ as keyword to search on Yahoo auction’s transaction history
Those Mitsubishi Jaguar mechanical pencils aren’t particularly rare. And yeah, a hashed up clip like that should be a major detractor on value. Shouldn’t be more than ¥1,500 if you ask me. Overall, the relative price of these pencils has gone up a bit, since so many other models have started to become more sought after, leaving those who can’t get them looking to other models that many collectors have passed over in past years. I remember just a few years back, listings for these sitting at ¥3,000 mint with box and no buyers for a few cycles. That was the original boxed price. Ones without box but mint with tag would get a little less on average. A fine condition one with no price sticker would often appear at ¥2,000 and not even get snatched up on the first listing. I do have a few of the Mitsubishi Jaguar etched pencils and they’re really very good. I have a particular fondness for the silver striped ones. These models do some things even better than PILOT, like the eraser cap (usually machined, versus a thin stamped tin cylinder).