Let's see if I can get this straight. Based on the link provided above, it can be said that:
1. Jokake, Arizona is not a town but was an old time hotel/resort. (Here's a postcard from the hotel in it's heydey.):

2. According to Jim Forte's Postal History website, a post office existed there only from 1936 to 1944. In that short a timeframe (8 years), it would seem there would be a very limited number of stamps destined to be used for precancels.
3. If we go with the statement in the link provided, there are only 10-12 copies of a precanceled stamp known to exist for Jokake. Complicating this count is the fact that most (all) of the precancels were done with pen ink and not stamp pad ink, resulting in poor print adhesion and questionable read quality, making some of these precancels totally illegible.
5. All precanceled stamps for Jokake were of the L-1 HS type and are said to be quite rare.