932                         LAWS OF MARYLAND.                  [CH. 370

nothing herein shall limit the right of the Commission to issue
bonds to meet the provisions of Paragraph or Sub-section (b)
of Section 1 of Public Act 284 of the Congress of the United
States, 71st Session, as hereinafter provided for. The Comp-
troller of the State of Maryland shall at any time or times,
upon the request of the Commission, calculate and certify to
the Commission the amount of such bonds which may be issued
within said limitation; and the certificate of the Comptroller
shall be final and binding authority to the Commission as to
such amounts. Said bonds shall be either registered or coupon
bonds in such denomination or denominations as shall be deter-
mined by the Commission and shall bear interest at not ex-
ceeding five per cent, per annum, payable semi-annually, and
shall mature in not exceeding fifty years from the date of
issue and shall be forever exempt from State, county and
municipal taxation. They shall be issued under the hand
and seal of said Commission and shall be guaranteed as to the
payment of principal and interest in the following manner: in
the event that the said seven (7c) cent tax of this Act is levied
and collected throughout the district the said bonds shall be
guaranteed as to the payment of principal and interest by the
County Commissioners of both Montgomery and Prince
George's Counties, which guarantee shall be endorsed on each
of said bonds in the following language: aThe payment of
interest when due and of the principal on maturity is guaran-
teed by Montgomery and Prince George's Counties, Mary-
land"; and such endorsement shall be signed on each of said
bonds by the president and secretary or the clerk of the Board
of County Commissioners of each county within twenty days
after the bonds are presented by said Commission to them for
endorsement. In the event of any liability under the above
guarantee, such liability for each county shall be in such pro-
portion as the assessable basis of that part, of such county with-
in the district bears to the assessable basis of the whole of said
district. In the event that the said seven (7c) cent tax is levied
and collected only throughout that portion of the district within
Montgomery County the said bonds shall be guaranteed as to
the payment of principal and interest by the County Commis-
sioners of Montgomery County, which guarantee shall be en-
dorsed on each of said bonds in the following language: "The
payment of interest when due and of the principal on maturity
is guaranteed by Montgomery County, Maryland"; and such
endorsement shall be signed on each of said bonds by the presi-