These look like the same type of saucers that I got off ebay a couple months ago.

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“Up for sale is a PAIR of new old stock, in the box Willys Jeep CJ5 coasters (possibly ashtrays or small plates).  They are in perfect, brand new never used condition, but the box has some water staining on the corner of it.  There are no identifying marks that show a manufacturer on them, but they certainly are vintage, most likely from the 1950’s.  I’m assuming they were some sort of dealer or manufacturer promotional item.  They show a detailed picture of a light green colored Willys Jeep CJ5 on smoked colored glass and they measure about 4-1/2″ in diameter.”