1376 LAWS OF MARYLAND. [CH. 658

herein shall limit the right of the Commission to issue bonds
to meet the provisions of Pararaphs or sub-sections (a) and (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 de-
termined by the Commission and shall bear interest at not
exceeding 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 prin-
cipal 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 Com-
missioners of both Montgomery and Prince George's Counties,
which guarantee shall be endorsed 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
and Prince George's Counties, Maryland"; and such endorse-
ment shall be signed on each of said bonds by the president
and secretary or the clerk of the Board of County Commis-
sioners 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 proportion as the
assessable basis of that part of such county within the district
bears to the assessable basis of the whole of said district. In
the event that the said seven (7¢) cent tax is levied and col-
lected 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
president and clerk of the Board of County Commissioners of
Montgomery County within twenty days after the bonds are
presented by said Commission to them for endorsement; pro-
vided, however, that in the event that the said seven (7¢)
cent tax is levied and collected throughout the district the