I just picked this chip up from Michael Par.

Ed Hertel lists similar chips in his guide as being from North Bend OR, TGT lists a Maray's from Portland OR

Ed's guide lists three chips a .25 in white, $25 black, and $25 brown (is that perhaps a misprint).

The interesting thing (at least to me) is that under the Hot Stamp (and that is $1.00) there is another impression slightly offline with the visible Hot Stamp where you can see both the Maray's impression and a $5.00

Back is cancelled and the cancellation mark appears to include initials
PGC or PCC or even possibly PBC

Does anyone have any more info on this chip?