a. (UN-1 7 b.)
1819. Southey, Lett. (1856), III. 106. The next question is how to transport them , for they are of an unfrankable shape and texture.
1917. R. R. La Follette, Hist. Campaign Funds, 187692, ii. 16. The congressional frank was utilized quite extensively both for frankable and unfrankable material by the two parties.