I do not exactly know how many pins by Joost Swarte there have been published during the last 35 years or so, but i have counted 25 of which the most part can be found on Google . These pins are among the very best small collectibles there are. Most of them were published by HET RAADSEL in the early Nineties, but others were published on the occasion of an event (Film Festival) or commissioned by a large corporation for their museum store (PTT museum). This is a world of small collectibles by Joost Swarte which has not been explored that much. The number of pins published can be overseen and prices are still fair , although rising quickly after recent auctions of these small objects.
http://www.ftn-books.com has 2 collectable Joost swarte designed pins available.