The 1970 Denver quarter, part of the United States Mint's 25-cent series, is a collectible coin that features the iconic George Washington portrait on the obverse and the eagle design on the reverse. Quarters from this era are often sought after by numismatists for their historical significance and the potential for grading variations. In terms of collectibility, a roll of 1970 Denver quarters may appeal to enthusiasts looking to acquire multiple coins in uncirculated or fine condition, contributing to their overall value and interest among collectors.