War ration stamps were a common item, and they are not in high demand as a collectible item, making their value fairly low. According to Exhibit Hall, war ration stamps are only worth a few cents each, and entire books generally sell for between $3 and $5.
Arizona Central states that some ration books with few missing stamps sell for $15 to $25 dollars in some cases. While war ration stamps are not rare, many people find this type of historical memorabilia interesting. In general, antique and collectible items are valued by how rare the item is, the demand for the item, what shape the item is in and what buyers are willing to pay.