Chapman and Cutler LLP
111 West Monroe Street
Chicago, Illinois 60603
October 12, 2016
Mr. Edward Bartz
Division of Investment Management
Securities and Exchange Commission
100 F Street, N.E.
Washington, DC 20549
Re: Guggenheim Defined Portfolios, Series 1519
Convertible & Income Portfolio of Funds, Series 24
File Nos. 333-213479 and 811-03763
--------------------------------------------------------------------------------
Dear Mr. Bartz:
This letter is in response to your comment given during a telephone
conversation with our office regarding the registration statement on Form S-6
for Guggenheim Defined Portfolios, Series 1519, filed on September 2, 2016, with
the Securities and Exchange Commission (the "Commission"). The registration
statement proposes to offer the Convertible & Income Portfolio of Funds, Series
24 (the "Trust").
PROSPECTUS
Investment Summary -- Principal Risks
1. The duration example in the sixth bullet uses a duration of three years.
Please confirm that the average weighted duration of the fixed-income securities
held by the underlying securities is approximately three years or less. If not,
please revise this example to reflect the average weighted duration of the
underlying securities.
Response: We confirm that the average weighted duration of the fixed-income
securities held by the underlying securities is approximately three years or
less and, therefore, the example does not need to be revised.
We appreciate your prompt attention to this registration statement. If you
have any questions or comments or would like to discuss our responses to your
questions please feel free to contact the undersigned at (312) 845-3484.
Very truly yours,
CHAPMAN AND CUTLER LLP
By /s/ Morrison C. Warren
----------------------
Morrison C. Warren