i was given these stamps by my grandmother a couple of years ago, but im dont know anything about them. are they anything special? they are sets it appears
Based only on a quick peek, the two stamps below Jim Thorp are worth about 50 cents each (if unused) and the red stamp below them could be worth more based on a closer examination (there are several varieties). That stamp is the oldest: 1920. The others appear as common stamps of those days.
The cluster of your stamps and the upper left are part of what is called the Presidential Series (of 1938). That series was composed of over 30 stamps of different denominations, ranging from 1/2 cent to $5.
Don..