Don't handle your stamps any more than you can help.
Don't buy rare stamps from any but responsible dealers. Some counterfeits resemble the genuine stamps marvellously. No one not an expert could tell them apart.
Don't buy Chinese locals, "Seebecks," and other philatelic trash, which is made purposely for sale to stamp collectors.
Don't expect to get something for nothing.
Frank P. Helsel.—The U. S. 12c. 1872 issue is worth 15 cents. The 50c. green Mauritius 1880 issue is worth 60 cents, unused; 85 cents, used. The "U.S. Post" is the 1864 issue; worth 15 cents.
W. L. L. P.—Most of the Heligoland stamps sold are reprints. They are worth 3 cents each. Originals are worth from 15 cents to $5 each.
James H. Creighton.—The two stamps are the 3c. 1861 and 1872. They are sold by stamp-dealers at 1 cent each.
J. A.M.—There is no premium on the 1872 U. S. 1c. coin.
R. F. B.—The U. S. 2c. stamp bearing a representation of a horseman is the 1869 issue, worth 8 cents used, 25 cents unused.
J. Duff.—The coin-dealers ask $1.50 for good copies of the 1877 trade dollar. There are several varieties of the 1801 and 1797 copper cents worth from 25 cents to $3 each, according to condition. There is no premium on the Canadian coin.