31 CFR § 332.5 - Limitation on holdings.
The amount of Series H bonds, originally issued during any one calendar year, that could be held by any one person, at any one time, computed in accordance with the governing regulations, was limited as follows:
(a) General limitation. From $5,000 to $30,000 depending upon the issue date.
(b) Special limitation for gifts to exempt organizations under 26 CFR 1.501(c)(3)-1. $200,000 for bonds received as gifts by an organization which at the time of purchase was an exempt organization under the terms of 26 CFR 1.501(c)(3)-1.
(c) Exchange pursuant to 31 CFR part 339. Series H bonds issued in an exchange pursuant to the provisions of 31 CFR part 339, also published as Department of the Treasury Circular No. 1036, were exempt from the annual limitation.